Does the Quran contain material taken from earlier books?

Summary

• Three different claims get bundled together, and they are not equally strong. (a) That the Quran was assembled out of a written source document — a Christian hymnbook, a Syriac church lectionary. (b) That the Quran retells stories which appear in earlier Jewish and Christian books, including books no church ever accepted as scripture. (c) That the Quran carries details from those retellings which make sense only if the earlier version is in view. Claim (a) is weak. Claim (b) is not in dispute by anyone, Muslims included. Claim (c) is where the actual argument lives, and this article spends most of its length there.
• Nobody has ever produced the book. Not an Arabic Bible, not an Arabic apocryphon, not an Arabic Alexander legend, not a manuscript, not a quotation, not one shared sentence. Sidney Griffith, the leading specialist in Arabic Christianity, concludes that "in all probability the earliest Christian translations of the Bible into Arabic appeared in the eighth century in Syria/Palestine" — a century after Muhammad.¹ The Christian apologetic line that Muhammad had books read to him has no book to point at.
• The stories, however, are demonstrably older than the Quran, and several of them are in no Bible. Jesus animating birds made of clay is in the second-century Infancy Gospel of Thomas.² Mary's vow to the temple, her miraculous feeding and the casting of lots over her guardianship are in the second-century Protevangelium of James.² Both texts sit together in one Syriac codex in the British Library that William Wright dated to the latter half of the sixth century — written before Muhammad was born.³
• The single best-dated Jewish case is Quran 5:32 against Mishnah Sanhedrin 4:5. The Mishnah was redacted around 200–220 CE. The maxim that killing one soul is like destroying a world is nowhere in the Torah; it is a rabbinic inference from the plural "bloods" in Genesis 4:10. The Quran attaches it to the Children of Israel by name, keeps the Mishnah's Cain-and-Abel setting, and keeps its connective — min ajli dhalika, "because of that," which is the Mishnah's own lefikhakh, "therefore."⁴
• The most consequential case is Dhul-Qarnayn against the Syriac Alexander Legend, and it is not settled. Kevin van Bladel argues that Quran 18:83–98 reworks a Syriac apocalypse datable to 629–630, and that "the two texts must be related. That is the only explanation for their point-for-point correspondence."⁵ Tommaso Tesei argued in 2023 that an earlier version of the Syriac text was written under Justinian, 527–565. That redating removes the dramatic chronological squeeze and makes ordinary borrowing easier, not harder. Neither position should be reported as the field's verdict.
• The transmission looks oral, and the specialists on the critical side say so themselves. Griffith's verdict on the Seven Sleepers is that the Quran gives a faithful reprise of Christian lore "as it must have circulated orally."⁵ Van Bladel's is that the Quran "must draw from the Syriac account, if not directly then by oral report."⁵ Neither man is defending Islam. Both reach for the ear rather than the page, because that is what the evidence shows: the story-shapes survive and the wording does not.
• The sharpest form of the problem is not borrowing at all. It is that the Quran narrates as revealed fact several episodes for which the only witnesses are texts no church ever certified. Quran 3:44 introduces the lot-casting over Mary as anba' al-ghayb, "news of the unseen," which God reveals, and stresses that Muhammad "was not with them" when it happened.⁶ Seven Christians did not sleep three centuries in a cave at Ephesus. A guardian was not chosen for Mary by lot at the Jerusalem temple. Those are legends, and the Quran reports them as history.
• Popular treatments fail on dates, in both directions. Christian apologists cite the Arabic Infancy Gospel, whose oldest known manuscript is dated 1299 and whose first printing is Sike's of 1697, and Pirqe de-Rabbi Eliezer, which is usually dated one to two centuries after the Quran. Muslim apologists dismiss the Infancy Gospel of Thomas as medieval when a Syriac copy of it was written before Muhammad's birth. An argument built on a later source has disqualified itself, and this article names each source's date and its confidence.

Verdict.  No one has shown that the Quran was copied from a book, and after nearly two centuries of trying, nobody is close.  Christians who assert it are making a claim they cannot support.  But the Quran is in continuous conversation with the Jewish and Christian religious literature circulating around it, and in several places it carries that literature's post-biblical legends as well as its truths.  That is the honest finding, and it is smaller than the popular Christian claim and larger than the popular Muslim one.  It does not by itself prove the Quran is not from God — a Muslim may hold that God confirms true material wherever it survived.  What it does is remove a specific Muslim argument from the table:  where the Quran's contents can be traced, they trace to what its hearers' neighbours had been saying for centuries, so passages presenting that material as knowledge unavailable to its audience are claiming something the evidence does not support.

• Where this article's own case is weakest. Four places. First, a parallel never proves direction by itself; it proves direction only when the dating is airtight, and for several of the flashiest parallels it is not. Second, the Alexander Legend case — the one that carries the most weight in debate — rests on a date that a 2023 Oxford monograph moved, and that monograph could not be obtained for this article, so its argument is reported from its publisher's summary and not assessed. Third, the argument cannot be run on a standard a Christian will not accept for his own scriptures: a skeptic who thinks the clay birds legendary thinks the walking on water legendary too, and this article is not arguing that miracles do not happen. Fourth, the oral-transmission model that best explains the evidence has a real hole in it — there is no positive evidence of organised Christian communities in the Hijaz, and the scholars who press that point conclude something worse for the traditional Muslim account than anything argued here.

The claim being tested

The charge is older than any of the scholarship.  It is in the Quran itself.

Quran 25:5, Sahih International:  "And they say, 'Legends of the former peoples which he has written down, and they are dictated to him morning and afternoon.'"⁷  Pickthall renders it "Fables of the men of old which he hath had written down so that they are dictated to him morn and evening."  Abdel Haleem:  "It is just ancient fables, which he has had written down:  they are dictated to him morning and evening."⁷  The Arabic phrase is asatir al-awwalin, "the writings" or "scribblings of the ancients," and it appears in the Quran nine times as the standing sneer of Muhammad's opponents.⁸  The verse before it has them say the Quran is "a falsehood he invented, and others have helped him at it."⁹  Quran 16:103 answers a more specific version.  Abdel Haleem:  "We know very well that they say, 'It is a man who teaches him,' but the language of the person they allude to is foreign, while this revelation is in clear Arabic."  Sahih International:  "And We certainly know that they say, 'It is only a human being who teaches him [i.e., the Prophet (ﷺ)].'  The tongue of the one they refer to is foreign, and this [recitation, i.e., Qur'ān] is [in] a clear Arabic language."¹⁰

So the Quran's own audience made the borrowing charge, named an unnamed human teacher, and got an answer.  Surahs 25 and 16 are both classified Meccan in the traditional scheme and placed in Theodor Noldeke's second and third Meccan periods.¹¹  That means the accusation belongs to the earliest phase of the dispute, not to later polemic.

Fourteen centuries on, the charge has hardened into three claims that get bundled into one word — "borrowing."  They are not the same claim, and they do not stand or fall together.

(a) The Quran was assembled out of a written source document.  This is the strong form:  that behind the Arabic text lies a Christian hymnbook, or a Syriac church lectionary, which somebody rewrote.  Günter Lüling argued for the hymnbook, Christoph Luxenberg for the lectionary.  Both theses are handled in where did the Quran come from?, and the field has rejected them.  Patricia Crone, who spent her career arguing that the Islamic tradition's account of its own origins was unreliable and had every reason to want Luxenberg to be right, called his work amateurish.¹²  This article tests two of his specific readings at the dictionary below.

(b) The Quran retells stories that appear in earlier Jewish and Christian books, including books no church accepted as scripture.  This is not in dispute anywhere.  Muslims agree, and say so in their own terms:  the Quran is musaddiq li-ma bayna yadayh, "confirming what came before it."¹³  A Christian who thinks he has scored a point by showing that the Quran tells a story found in Genesis, or in the Talmud, or in a Syriac homily, has not understood what the Quran claims about itself.  What the Quran says about the Jewish and Christian scriptures themselves is a separate question, taken up in is the Bible corrupted?.

(c) The Quran carries details from those retellings that only make sense if the earlier version is in view.  This is the real argument, and it is the only one worth an article.  It asks not whether the Quran shares a story with an earlier text but whether it shares the earlier text's peculiarities — a phrase, a sequence, an odd word, a controversy internal to the earlier tradition — where those peculiarities have no independent reason to be there.

And there is a fourth proposition, usually smuggled in behind the third:

(d) Therefore the Quran is not from God.  That does not follow from (b) at all, and it does not follow from (c) without further argument.  A Muslim who grants (c) entirely can still say that God, being God, may confirm a true report wherever it survived — including in a book men had lost confidence in.  The argument that (c) makes trouble for the Quran has to be made separately and carefully, and this article makes it in a narrow form at the end.

The test any parallel has to pass, stated once.  Two things, and both are needed.  First, the earlier text has to be earlier — provably, from a manuscript or a dated citation, not from a handbook's guess.  Second, the resemblance has to be specific enough that shared oral lore does not explain it as well.  Almost every failure in the popular literature, on both sides, is a failure of the first test.

Three relationships get flattened into the word "borrowing," and they carry very different weight.  Literary dependence means the Quran's author had the text, or a close rendering of it;  that needs a datable earlier text and wording that tracks.  Shared oral lore means the story circulated in the churches and synagogues of late antique Arabia and Syria, in sermons, hymns and liturgy, and the Quran picks it up from the air;  that needs only that the story be attested earlier.  Coincidence or common source means both draw on a motif so widespread that no direction can be shown.  Nearly all of the material below falls into the second category.  One case has a serious argument for the first, and it is contested.

The strongest case for the Muslim claim

A believing Muslim should recognise this section.  It is the case at full strength, before any evaluation.

The Quran never claims to be new information, and says so repeatedly.  Quran 3:3:  "He has sent down upon you, [O Muhammad], the Book in truth, confirming what was before it.  And He revealed the Torah and the Gospel."¹⁴  Quran 2:41 tells the Children of Israel to "believe in what I have sent down confirming that which is [already] with you."¹⁵  Quran 5:48 calls the Book "confirming that which preceded it of the Scripture and as a criterion over it."¹³  The Arabic word in all three is a form of saddaqa, to confirm or verify.  A book that announces itself as the confirmation of earlier revelation is not embarrassed to contain earlier material.  Finding it there is finding what the Quran said would be there.

Nobody has produced the book.  After nearly two centuries of European scholarship devoted to this exact question — Abraham Geiger's Was hat Mohammed aus dem Judenthume aufgenommen? was published in 1833 — there is still no Arabic Bible from before Islam, no Arabic apocryphon, no Arabic Alexander legend, no manuscript, no citation, and not one shared sentence.¹⁶  What exists is a catalogue of parallels.  Parallels are notoriously plastic:  they run in whatever direction the scholar's prior commitments send them, and the same catalogue has been used to argue that the Quran depends on the rabbis and that the rabbis depend on the Quran.

The dating cuts the other way on several showpieces, and this is checkable.  Three of the parallels most often paraded in Christian apologetics come from texts nobody can date before the Quran.  Pirqe de-Rabbi Eliezer, the source usually cited for the raven that teaches Cain to bury Abel, is conventionally dated to the eighth or ninth century and is widely held to show knowledge of Islam.¹⁷  Targum Sheni to Esther, the source usually cited for Solomon's hoopoe and the glass floor, cannot be dated with any confidence at all:  the range in the literature runs from the fourth century to the eleventh, and the datings most often repeated put it around 700.¹⁸  The Arabic Infancy Gospel, cited for the clay birds and the cradle speech, is known from manuscripts no older than 1299 and was first printed at Utrecht in 1697 from a manuscript that has since vanished;  nothing dates the compilation before Islam.²  A Muslim can say, correctly, that a good part of the borrowing catalogue is a catalogue of later Jewish and Christian borrowing from Islam.

The Quran's edits are consistent, doctrinal, and go against the grain of the sources.  This is the strongest single observation on the Muslim side, and the critics record it and pass over it.  In the Syriac homilies the youths of Ephesus confess the Father, the Son and the Holy Spirit against Zeus, Apollo and Artemis;⁵ in the Quran they say only "Our Lord is the Lord of the heavens and the earth."¹⁹  In the apocryphal infancy books the child in the cradle announces "I am Jesus, the Son of God, the Word";² in the Quran he says inni abdu llah, "I am the servant of God."²⁰  These are not the slips of a copyist.  They are the edits of a text that has a doctrine and is imposing it.

The differences are as diagnostic as the resemblances.  In the rabbinic version the raven teaches Adam;  in the Quran it teaches Cain.¹⁶  Nimrod, the antagonist of the Abraham-and-the-furnace story in Genesis Rabbah, is absent from the Quran's version.²¹  Noah has a son who drowns, which no Jewish or Christian source known to scholarship contains.²²  An anthology of borrowed legend would not look like this.

And the specialists say oral.  Not the apologists — the scholars whose work the Christian case depends on.  Sidney Griffith, having laid the Quran's Seven Sleepers beside Jacob of Serugh's Syriac homily, concludes that the Quran's version is a faithful reprise of Christian lore "as it must have circulated orally."⁵  Kevin van Bladel, having argued that the Quran reworks the Syriac Alexander Legend, writes that it "must draw from the Syriac account, if not directly then by oral report."⁵  If the strongest advocates of dependence reach for the ear rather than the page, then the claim that Muhammad had books read to him has no support even from the people who most want to convict him.

Dates first, because dates are the whole discipline

Almost every bad argument in this field is a dating error, and the errors run in both directions.  A Christian who cites a Jewish text written after the Quran to prove the Quran copied it has proved nothing, and has handed his opponent a free win.  A Muslim who dismisses the Infancy Gospel of Thomas as a medieval forgery when a Syriac copy of it sits in the British Library in a sixth-century hand has done the same thing in reverse.

So here is every text this article uses, plus two it considered and set aside, each with its date, its earliest physical witness, and a plain verdict on whether it can be used at all.

Two entries in that table do most of the damage to the popular Christian case.  Pirqe de-Rabbi Eliezer and the Arabic Infancy Gospel are the two sources cited most often in apologetic writing on this subject, and neither can be shown to predate the Quran.  One entry does most of the damage to the popular Muslim case:  British Library Add. 14,484 is a physical object, catalogued, in a sixth-century Estrangela hand, and it contains the Syriac Protevangelium of James and the Syriac Infancy Gospel of Thomas bound together.  William Wright, who edited it in 1865, wrote:  "This manuscript seems, as nearly as I can judge, to belong to the latter half of the sixth century.  It is a large quarto, written in two columns, in a fine, regular Estrangela."³  That single codex settles the dating for the first three Christian cases below, and it settles it without any scholarly reconstruction at all.

One date is assumed throughout and is not argued here:  that the Quran is a text of the early-to-mid seventh century.  The manuscript and linguistic evidence for that is set out in where did the Quran come from? and has the Quran been perfectly preserved?.  This article needs only a fixed point to date the earlier material against.

What both sides already agree on: the Quran's audience knew these stories

Before any individual case, notice the shape of the Quran's own presentation.  It hardly ever narrates these stories from the beginning.  It enters them in the middle, as though its hearers already knew them.

Quran 18:83 opens the Dhul-Qarnayn passage:  "And they ask you, [O Muhammad], about Dhul-Qarnayn."²³  Quran 18:9 opens the Seven Sleepers:  "Or have you thought that the companions of the cave and the inscription were, among Our signs, a wonder?"²⁴  Quran 18:22 does something stranger still — it reports an argument in progress about how many sleepers there were, lists three guesses, and tells Muhammad not to join in:  "They will say there were three, the fourth of them being their dog;  and they will say there were five, the sixth of them being their dog — guessing at the unseen;  and they will say there were seven, and the eighth of them was their dog.  Say, [O Muhammad], 'My Lord is most knowing of their number.'"²⁵

Sidney Griffith states the general point directly.  Writing of the Quran's relation to biblical material, he says the Quran "seldom, if ever, narrates Bible history.  Rather, the Qurʾān assumes that its audience is thoroughly familiar with Jewish and Christian, canonical and noncanonical, scriptural and nonscriptural prophetic lore."¹

Both sides can live with that observation, and both should notice what it costs them.  For the Christian it means the material was in the air, so a written source is not needed to explain any of it.  For the Muslim it means the Quran's first hearers were not being told anything new — and that is exactly what they said at the time, when they called it asatir al-awwalin.

The Christian material

Jesus makes birds out of clay

Quran 3:49 has Jesus say, in Sahih International's rendering, with the translator's square brackets kept:  "Indeed I have come to you with a sign from your Lord in that I design for you from clay [that which is] like the form of a bird, then I breathe into it and it becomes a bird by permission of Allāh."²⁶  Quran 5:110 repeats the miracle with God addressing Jesus:  "and when you designed from clay [what was] like the form of a bird with My permission, then you breathed into it, and it became a bird with My permission."²⁷

Three Arabic words carry the passage.  Akhluqu is the first person of khalaqa, "to create" — the verb the Quran normally keeps for God.  Tin is wet clay, the same word used of the stuff God formed Adam from.  Al-tayr is a collective noun, "bird" or "birds";  the Quran does not say how many.

The story is in no gospel.  That is not a debating point;  it is simply true, and no Muslim scholar disputes it.  Where it does appear is the Infancy Gospel of Thomas, a second-century apocryphon.  Tony Burke, who produced the modern critical edition, argues the traditional title is a misnomer and calls it by its oldest attested name, the Paidika or Childhood of the Saviour;  Gabriel Said Reynolds follows him.²⁸  Chapter 2 reads, in Burke's English:

When the boy Jesus was five years old, he was playing at the ford of a rushing stream.  And he gathered the disturbed water into pools and made them pure and excellent, commanding them by the character of his word alone and not by means of a deed.  Then, taking soft clay from the mud, he formed twelve sparrows.  It was the Sabbath when he did these things, and many children were with him.  And a certain Jew, seeing the boy Jesus with the other children doing these things, went to his father Joseph and falsely accused the boy Jesus, saying that, on the Sabbath he made clay, which is not lawful, and fashioned twelve sparrows.  And Joseph came and rebuked him, saying, "Why are you doing these things on the Sabbath?"  But Jesus, clapping his hands, commanded the birds with a shout in front of everyone and said, "Go, take flight, and remember me, living ones."  And the sparrows, taking flight, went away squawking.²⁸

Was it in circulation before the Quran?  Yes, and this is the step usually asserted rather than shown.  The oldest complete Greek manuscripts are eleventh century or later, which is the fact Muslim apologists reach for, and it is beside the point.  The work survives in versions whose manuscripts are older than Islam — including the Syriac copy in British Library Add. 14,484, the sixth-century Nitrian codex described above.³

The wording does not track.  The one thing shared that the Bible lacks — clay birds animated by Jesus — is a single image, not a passage.  Everything around it differs systematically:  the Quran drops the number, the Sabbath, the informer, the rebuke and the clap, and adds the breath and the fourfold "by God's permission."  There is no phrase to align.  That is what oral transmission looks like:  a memorable picture survives, its narrative frame does not.

The breath is the interesting difference, and it cuts both ways.  In the Infancy Gospel Jesus animates the birds by clapping and shouting.  In the Quran he breathes into them, which is what God does to Adam and to Mary elsewhere in the Quran.  Reynolds draws the obvious inference:  "it might be noted that with this miracle the Jesus of the Qurʾān acts like the God of the Qurʾān."²⁸  A Muslim will answer that the fourfold bi-idhni llah is precisely the Quran's correction, inserted to make clear the power is delegated.  Both readings are available and the Arabic settles neither.

Verdict:  shared lore, not literary dependence.  The earlier text is securely earlier and the direction of travel is not in doubt.  What is not shown is that anyone read the Infancy Gospel of Thomas to the Quran's audience out of a book.

A warning about the source apologists actually cite.  Christian websites routinely quote the Arabic Infancy Gospel for this story.  Do not.  That compilation's clay-birds episode is at chapter 36, where a seven-year-old Jesus and his playmates model animals out of mud — a fuller and later-looking version than the Greek, in a book nothing dates before Islam.²  Citing it inverts the argument:  if anything, the traffic at that point runs the other way.  The pre-Islamic evidence is the Greek Infancy Gospel of Thomas and its sixth-century Syriac translation, and that is enough.

Jesus speaks in the cradle

Quran 3:46 says of the child announced to Mary that "He will speak to the people in the cradle and in maturity."²⁹  The scene itself is Quran 19:29–33.  Mary brings the newborn to her people, who accuse her.  She points at the baby.  They say, "How can we speak to one who is in the cradle a child?"  And the infant answers:  "Indeed, I am the servant of Allāh.  He has given me the Scripture and made me a prophet."²⁰  Pickthall renders the opening words "Lo!  I am the slave of Allah."  The Arabic is inni abdu llah.  Hold that phrase;  it is the whole argument of this section.

Sunni tradition treats the miracle as rare but not unique.  Sahih al-Bukhari 3436 has Abu Huraira report:  "None spoke in cradle but three" — Jesus, a child who vindicated the monk Jurayj, and an Israelite woman's nursing infant.³⁰

The source apologists cite for this is the one they should not.  The Arabic Infancy Gospel opens with exactly this scene:  the infant Jesus, lying in the cradle, says to Mary, "I am Jesus, the Son of God, the Word, whom you have borne, just as the angel Gabriel announced to you;  and my Father sent me for the salvation of the world."²  It cannot be the Quran's source, and not for a technicality.  Its first printing is Sike's, Utrecht 1697, from a manuscript now lost, and Tischendorf notes that this very chapter presents itself as a quotation lifted from somewhere else — "the book of Joseph the high priest."²  An apologist who quotes it is quoting a text that may well be later than the Quran, and quoting the one passage in it flagged as second-hand.

What is securely earlier is the motif, not the scene.  The Gospel of Pseudo-Matthew has the infant Jesus speak in the desert to calm his parents when dragons come out of a cave:  "Do not be afraid, and do not judge me by the fact that I am an infant;  for I always have been and am a perfect man."²  Reynolds ties the Quran's cradle motif to precisely this text, which he dates to "the early seventh century."²⁸

And that date is the problem.  Jan Gijsel's critical edition places Pseudo-Matthew's archetype at roughly 600–625, and the earliest manuscripts are ninth century.³¹  A Latin text composed in the West within living memory of the Quran's proclamation is not a plausible source for an Arabic recitation in the Hijaz a generation later.  What it shows is that the motif was in the air across the late antique Christian world at the same time.

The content runs the opposite way, and that is the honest finding.  Both apocryphal infants announce a high Christology.  The Quran's infant announces the reverse:  "I am the servant of God," followed by prayer, alms and duty to his mother.  If the Quran is borrowing here, it is borrowing a stage effect in order to say the opposite of what the borrowed scene said.  No Christian article should write "the Quran copies the Arabic Infancy Gospel."  It does not, the claim is checkable, and it is false.

Verdict:  no demonstrable dependence on any particular text.  Shared motif, independent scene, opposite content.  This is the weakest of the Christian cases and the one Christian apologetics most often overstates.

Mary vowed to the temple, fed by an angel, and the casting of lots

This is the strongest of the Christian cases, and it deserves the most space, because it is the one that survives cross-examination.  Four separate details line up in the same order in both texts, none of them is in the New Testament, and the earlier text's date is not disputed by anybody.

What the Quran says.  Quran 3:35–37, Sahih International:

[Mention, O Muḥammad], when the wife of ʿImrān said, "My Lord, indeed I have pledged to You what is in my womb, consecrated [for Your service], so accept this from me.  Indeed, You are the Hearing, the Knowing."  But when she delivered her, she said, "My Lord, I have delivered a female."  And Allāh was most knowing of what she delivered, and the male is not like the female.  "And I have named her Mary, and I seek refuge for her in You and [for] her descendants from Satan, the expelled [from the mercy of Allāh]."  So her Lord accepted her with good acceptance and caused her to grow in a good manner and put her in the care of Zechariah.  Every time Zechariah entered upon her in the prayer chamber, he found with her provision.  He said, "O Mary, from where is this [coming] to you?"  She said, "It is from Allāh.  Indeed, Allāh provides for whom He wills without account."³²

The word Sahih International renders "prayer chamber" and Pickthall renders "sanctuary" is al-mihrab.  The vow-word in verse 35 is muharraran:  set free from ordinary use, dedicated.

Then Quran 3:44:  "That is from the news of the unseen which We reveal to you, [O Muhammad].  And you were not with them when they cast their pens as to which of them should be responsible for Mary.  Nor were you with them when they disputed."⁶  Pickthall has "when they threw their pens (to know) which of them should be the guardian of Mary";  Abdel Haleem has "when they cast lots to see which of them should take charge of Mary";  Yusuf Ali has "cast lots with arrows."⁶  The Arabic is idh yulquna aqlamahum ayyuhum yakfulu Maryam.  Aqlam is the plural of qalam, a reed cut for writing, and the translators divide over whether it means reeds used as lots or writing-pens.

What the earlier text says.  The Protevangelium of James, second century.  Origen (d. c. 253) cites it under the title Book of James in his commentary on Matthew, and the oldest manuscript, Papyrus Bodmer V, is third or fourth century.³³  The modern critical edition is Émile de Strycker's of 1961;  the Greek below is Tischendorf's, read from the page images.

The vow.  Anna, childless, is told by an angel that she will conceive, and answers (Protevangelium 4:1):  "As the Lord my God lives, if I bear a child, whether male or female, I will bring it as a gift to the Lord my God, and it shall minister to him all the days of its life."²  The Quran's muharraran is that vow, and the Quran keeps the Protevangelium's twist that the child turns out to be a girl.

The temple upbringing and the angel's food.  Protevangelium 8:1:  "And Mary was in the temple of the Lord like a dove being fed, and she received food from the hand of an angel."²

The lots.  Protevangelium 8:3 has the angel tell Zechariah to summon the widowers of the people, each bringing a rod, and to whomever the Lord shows a sign, she shall be his wife.  Then 9:1:  "And taking the rods of them all he went into the temple and prayed.  And when he had finished the prayer he took the rods and went out and gave them back to them:  and there was no sign in them.  But Joseph took the last rod:  and behold, a dove came out of the rod and flew onto Joseph's head."²  A second lot-casting follows at 10:1, when seven undefiled virgins are chosen to spin the temple veil and lots are drawn over who spins which colour;  the true purple falls to Mary.²

The dating is secure and nobody disputes it.  Origen cites the book in his commentary on Matthew, Book X, chapter 17.³³  Papyrus Bodmer V carries the Greek text in a third- or fourth-century hand.  The Syriac translation is in British Library Add. 14,484, in a hand Wright dated to the latter half of the sixth century.  A Syriac Protevangelium was being read in the Syriac-speaking church before Muhammad was born.  There is no live argument that this text is later than the Quran, and no Muslim scholar has produced one.

But the Quran's version is not a translation, and two things are moved.  Zechariah, who in the Protevangelium is the priest running the lottery, becomes in the Quran the man who wins it.  Joseph, who wins it in the Protevangelium, is absent from the Quran's account entirely.  And rods become pens.  A copyist does not make those changes.  A preacher retelling a story from memory does.

One caution about later Muslim tradition.  Al-Tabari (d. 310/923) and the commentators after him name Mary's mother Hanna, which is the Protevangelium's Anna.  The Quran does not name her.  That is Islamic tradition absorbing Christian lore in the eighth and ninth centuries — evidence about the tafsir, not about the Quran, and the two must not be blurred.

Verdict.  Dependence on the tradition, at the level of a story, is as close to demonstrated as this kind of argument gets.  Dependence on a written copy is not shown.  Confidence that the Protevangelium's story reached the Quran's author:  high.  Confidence that it reached him as a book:  low.

And here is the sharpest form of the problem, which belongs in this section rather than at the end.  Quran 3:44 does not simply retell the lot-casting.  It introduces it as anba' al-ghayb, "news of the unseen," which God reveals, and stresses that Muhammad "was not with them" when it happened.  The verse presents this material as knowledge no one in Mecca could have had.  A Christian will observe that the episode is not history but a second-century legend, and that "you were not there" is true of everyone and is not the same as "no one in your world had heard this."  A Muslim will answer that God is free to confirm a true report wherever it had been preserved.  Both answers are stated at full strength later in this article.

Mary, the palm tree and the stream

Quran 19:22–26 has Mary withdraw to a remote place, seized by labour pains at the trunk of a palm tree, wishing she were dead.  A voice calls to her:  "Do not grieve;  your Lord has provided beneath you a stream.  And shake toward you the trunk of the palm tree;  it will drop upon you ripe, fresh dates.  So eat and drink and be contented."³⁴

One point of Arabic is worth flagging because a reader comparing translations will notice it.  The speaker in verse 24 is man tahtiha or min tahtiha;  the unpointed consonants carry both "the one who was below her," which makes the newborn the speaker, and "from below her," which leaves it a voice or an angel.  Only the vowels decide, and the vowels are not in the earliest script.  Sahih International prints "he";  Yusuf Ali prints "(a voice)."³⁴  Nothing in this section turns on which is right.

The parallel text is the Gospel of Pseudo-Matthew, chapter 20.  On the third day of the flight into Egypt Mary rests under a palm and wishes for its fruit;  Joseph objects that the tree is too tall and says he is more worried about the water running out.  The infant Jesus, sitting in his mother's lap, says to the palm:  "Bend down your branches, O tree, and refresh my mother with your fruit," and then, "open beneath your roots a vein of water which is hidden in the earth, and let the waters flow so that we may quench our thirst from it."  The palm bows to Mary's feet, and springs of cold sweet water open at its roots.²

Three specifics are shared:  a palm, its fruit given to Mary, and water appearing at the same moment and place.  That is more than a generic desert scene, and neither element is in Matthew or Luke.

But the date is awkward for the dependence claim, and this must be said plainly.  Pseudo-Matthew is a Latin composition of roughly 600–625, with ninth-century manuscripts.  Reynolds calls it "a Latin text likely dating from the early seventh century, dependent on earlier traditions."²⁸  A Latin book finished in the West within living memory of the Quran's proclamation is not a source anyone can trace to the Hijaz.  The argument has to be about the tradition, not the book.

And here is where the secondary literature goes soft, so it is worth checking.  Reynolds adds that "the miracle of the palm tree is already mentioned by Sozomen (d. 450):  Ecclesiastical History 5:21."²⁸  The locator is right and the description is loose.  Sozomen's chapter tells of a tree called Persis at Hermopolis in the Thebaid:  "when Joseph fled with Christ and Mary, the holy mother of God, from the wrath of Herod, they went to Hermopolis;  when entering at the gate, this largest tree, as if not enduring the advent of Christ, inclined to the ground and worshipped Him."³⁵  That is a bowing tree, on the flight into Egypt, attested before 450.  It is not a palm, there is no fruit given to Mary, and there is no spring.  Sozomen even offers a rationalising explanation — the tree had been a pagan cult object and shook when the demon fled.  So Sozomen establishes that a tree-bows-to-Christ story circulated in Egypt two centuries before the Quran.  He does not establish that the palm-and-spring story did.  An article that cites Sozomen for the palm and the spring will be caught.

The best available explanation of how this story reached Arabia is a place, not a book.  Stephen Shoemaker argued in 2003 that the Kathisma church between Jerusalem and Bethlehem — built round a rock where Mary was said to have rested — commemorated the nativity in competition with Bethlehem, and had attached to it both the palm miracle and a spring channelled into the building.  Reynolds finds it plausible:  "it seems possible that the Qurʾān's author knew of the popular Palestinian traditions surrounding the Kathisma church."²⁸  That model claims the story travelled as local pilgrimage lore.  It does not claim anyone in Arabia owned a copy of Pseudo-Matthew.

Verdict:  shared lore with a plausible geographical route;  literary dependence not shown, and the datable Latin text is too late to be the source.  The Quran's version is the more restrained of the two:  the tree does not bow, and Mary is told to shake it.  That is not what a copyist produces.

The Seven Sleepers of Ephesus

Quran 18:9–26 tells of the ashab al-kahf, the Companions of the Cave.  The surah takes its name from them.  Young men who believed in God took refuge in a cave from a persecuting people;  God "cast a cover of sleep over their ears" for many years;  they woke thinking they had slept a day, sent one of them into the city with a coin to buy food, and were discovered.  Those who found them argued about what to build over them, and "said those who prevailed in the matter, 'We will surely take [for ourselves] over them a masjid'" — a place of prostration.³⁶  The Quran says they stayed "in their cave for three hundred years and exceeded by nine," and immediately adds:  "Say, 'Allāh is most knowing of how long they remained.'"³⁷

Two details are worth holding.  First, at 18:9 the Quran calls them "the companions of the cave and the inscription" — ashab al-kahf wa-l-raqim.²⁴  Al-raqim is a famous crux:  the classical Muslim commentators proposed a village, a mountain, a dog's name and an inscribed tablet, and never agreed.  Second, at 18:18 the sleepers are guarded by a dog:  "their dog stretched his forelegs at the entrance."³⁸

The earlier texts are Syriac, and there are several of them.  Jacob of Serugh (c. 451–521) wrote a verse homily, a memra, on "The Youths of Ephesus," for the saints' feast day.  Sidney Griffith studied it against Quran 18 and states the manuscript position:  the earlier of the two recensions survives in Vatican Syriac MS 115, "paleographically dated to the seventh or eighth century … among the oldest, extant collections of Jacob of Serugh's mêmrê."⁵  Two further pre-Islamic Syriac accounts exist:  the Syriac epitome of the Ecclesiastical History of Zacharias of Mytilene (c. 465–536), preserved in a chronicle compiled at Amida in 569, and the Ecclesiastical History of John of Ephesus (c. 507–586).

Griffith's translation of the martyrs' answer to the emperor Decius:

The son of the prefect and his seven companions (habrawhy) spoke up, "We are not going to bow down to dumb idols, the work of human hands.  Ours is the Lord (maryâ) of the heavens;  He will help us.  To Him we will bow down, and to Him offer the purity of our heart.  You have as king, Zeus and Apollo, along with Artemis.  We have as king, the Father and the Son, along with the Holy Spirit."⁵

And the entombment, with a detail that matters later:  "He took their spirits and brought them up to heaven, and He left a watcher ('îrâ) to be the guardian of their limbs."⁵

And the lead tablets:

Two sophists, sons of princes, were present there, and they thought that the Lord was going to resurrect them.  They made tablets of lead and they set them beside them;  they wrote on them the names of the sons of light, and the reason why the youths went into the cave to hide, and at what era they had fled from Decius the king.⁵

The route into Arabia is named, which is rare in this literature.  Griffith observes that in pre-Islamic times the Syriac legend circulated "solely in 'Jacobite' communities" — Miaphysite Christians — and draws the conclusion that "in the Qur'an's milieu, the narrative circulated first among Arabic-speaking, 'Jacobite' Christians in the Ghassanid confederation in the Syro-Jordanian steppe land as well as in the environs of Najran in southern Arabia."⁵  Those are real communities, in known places, speaking Arabic.

The legend was already crossing languages before Islam existed.  Gregory of Tours (c. 538–594) put it into Latin and says at the end of his short version that he produced it quam Syro quodam interpretante in Latinum transtulimus — "which we translated into Latin with a certain Syrian interpreting."³⁹  A bishop in Gaul, before 594, had a Syriac speaker turn the story into Latin for him.  That is exactly how an oral tale travels.

Two details in the Quran make sense only against the Syriac, and that is what lifts this case above a generic parallel.

First, al-raqim.  The Quran's own earliest interpreters could not agree what the word meant, which is itself telling.  Griffith's proposal is that it refers to the writing on the lead tablets, and that once the Syriac narrative is in view, God's question to Muhammad — "Do you reckon that the companions of the cave and of the inscription are wondrously among our signs?" — "makes complete narrative sense."⁵  A word the Quran's first commentators could not explain, explained by a Syriac homily their community had never read, is a strong argument.

Second, the Quran's insistence that people are quarrelling — about the number at 18:22, and about the years at 18:25–26.  Griffith shows that the pre-Islamic Syriac sources really do disagree on both:  eight against seven for the number, and 372, 350, 370 or "two hundred years ago, more or less" for the years.⁵  The Quran is not inventing a controversy.  It is intervening in one that already existed — which means its audience knew the story well enough to be arguing about it.

The dog is the interesting difference, and Griffith withdraws his own suggestion about it.  He wonders whether the Syriac 'îrâ, the angelic "watcher," became the Arabic watch-dog — "It may not be too far a leap to suppose" — and notes in the same breath that with one exception no Muslim commentator ever proposed it.  Then, on the same page, he takes it back:  "In spite of its allure, it is probably a temptation to be avoided to suppose that the watch-dog in the Arabic Qur'an is a conceptual 'Syriacism.'  The step down from guardian angel to watch-dog is no doubt too steep a step to imagine the Arabic-speaking Christians in the Qur'an's audience readily to have taken in translating the legend."⁵  This parallel is not available to a Christian arguing for dependence.  The scholar who proposed it rejected it.

Griffith himself says the transmission was oral, and the sentence should be quoted in full:

Reading the Qur'an's evocation of the legend of the "Companions of the Cave" against the background of the fuller narrative as we have it in the extant, pre-Islamic, Syriac tradition, and particularly in the mêmrâ of Jacob of Serugh, enables the scholar of Syriac to recognize the fidelity of the Qur'an's reprise of a piece of Christian lore as it must have circulated orally among the Arabic-speaking, "Jacobite" Christians of Muhammad's day in Arabia.⁵

That is the leading specialist in Christian Arabic saying the Quran's version is a faithful reprise of Christian lore, and saying it circulated orally.  Both halves matter.

One thing an honest article must add.  The story is not history.  Seven Christians did not sleep for three centuries in a cave at Ephesus.  So the Quran narrates as fact an episode nobody, Christian or Muslim, can produce evidence for.  That is a real problem for the Quran, and it is taken up at the end.  It is also a problem the Quran shares with the Syriac homilists, who believed it too.

Verdict:  shared oral lore, demonstrated as well as the method allows, with two fingerprints that go past a generic parallel.  This is the second-strongest Christian case after the Protevangelium, and unlike that one it has a named route into Arabia.

Dhul-Qarnayn and the Syriac Alexander Legend

This is the most consequential case in the whole subject and the least settled.  It gets the most space here for that reason, and this article does not pretend it is closed.

What the Quran says.  Quran 18:83–98, Sahih International, with the translator's brackets:

And they ask you, [O Muḥammad], about Dhul-Qarnayn.  Say, "I will recite to you about him a report."  … Until, when he reached the setting of the sun [i.e., the west], he found it [as if] setting in a body of dark water, and he found near it a people. … Until, when he came to the rising of the sun [i.e., the east], he found it rising on a people for whom We had not made against it any shield. … Until, when he reached [a pass] between two mountains, he found beside them a people who could hardly understand [his] speech.  They said, "O Dhul-Qarnayn, indeed Gog and Magog are [great] corrupters in the land.  So may we assign for you an expenditure that you might make between us and them a barrier?"  He said, "That in which my Lord has established me is better [than what you offer], but assist me with strength [i.e., manpower];  I will make between you and them a dam.  Bring me bars of iron" - until, when he had leveled [them] between the two mountain walls, he said, "Blow [with bellows]," until when he had made it [like] fire, he said, "Bring me, that I may pour over it molten copper."  So they [i.e., Gog and Magog] were unable to pass over it, nor were they able [to effect] in it any penetration.  [Dhul-Qarnayn] said, "This is a mercy from my Lord;  but when the promise of my Lord comes [i.e., approaches], He will make it level, and ever is the promise of my Lord true."²³

Dhu l-qarnayn means "the two-horned one."  The Quran never says who he is.

What the Syriac says.  The Neshana d-Aleksandros, "The Glorious Deeds of Alexander," usually called the Syriac Alexander Legend.  E. A. Wallis Budge edited and translated it in 1889, and his is the edition van Bladel, Tesei and G. J. Reinink all cite.  Alexander prays before setting out:  "I know in my mind that thou hast exalted me above all kings, and thou hast made me horns upon my head, wherewith I might thrust down the kingdoms of the world."⁴⁰  He travels to the fetid sea at the edge of creation, then east, then north to a mountain pass where the Huns break through.  There:

The king said, "Let us make a gate of brass and close up this breach."  His troops said, "As thy majesty commands we will do."  And Alexander commanded and fetched three thousand smiths, workers in iron, and three thousand men, workers in brass.  And they put down brass and iron, and kneaded it as a man kneads when he works clay.  Then they brought it and made a gate, the length of which was twelve cubits and its breadth eight cubits.⁴⁰

Then he has an inscription cut on the gate:

The Huns shall go forth and conquer the countries of the Romans and of the Persians, and shall cast arrows with … and shall return and enter their own land.  Also I have written that, at the conclusion of eight hundred and twenty-six years, the Huns shall go forth by the narrow way which goes forth opposite Haloras … And again I have written and made known and prophesied that it shall come to pass, at the conclusion of nine hundred and forty years, … another king, when the world shall come to an end by the command of God the ruler of creation.⁴⁰

The case for dependence, at full strength.  Kevin van Bladel reviewed the two texts part by part and stated the logic plainly:

The two texts must be related.  That is the only explanation for their point-for-point correspondence.  In that case there are three reasonable possibilities:  (1) the Syriac takes its account from the Qur'an, or (2) the two texts share a common source, or (3) the Qur'an uses the account found in the Syriac.⁵

He rules out (1):  a Syriac apocalypse written about 630, carrying a very specific pro-Heraclian political message, would have no reason to expand an Arabic text from a community "far from well known outside Arabia."⁵  He rules out (2) because the shared material is welded to the events of 628–630 and could not have been written for an earlier context.  His conclusion:  "The Qur'anic account must draw from the Syriac account, if not directly then by oral report."⁵

Why the date matters so much.  Van Bladel follows Reinink, who "has persuasively argued that the Alexander Legend was composed just after 628, perhaps in 630, the year in which Heraclius restored the cross to Jerusalem."⁵  The mechanism is the inscription's own arithmetic.  The prophecy is dated 940 years after Alexander, which converts to 628–9 CE — the exact end of the Roman-Persian war of 603–630.  A text whose "prophecy" lands on the year it was written is dating itself.  The dating is not van Bladel's alone;  Wolfram Brandes, surveying the field in the standard collection on Heraclius, states it in passing as settled:  "the Syriac Legend of Alexander the Great, composed c. 629/630 in Northern Mesopotamia."⁴¹

If that is right, then twenty verses of the Quran rework a document published within two years of Muhammad's death, and surah 18 — which the Islamic tradition classifies as Meccan, and which Noldeke put in his second Meccan period — cannot be where the tradition puts it.  That is why the argument is fought over.  Van Bladel's own summary:

The main conclusion reached here is that a Syriac text quite current and important in the last years of Muhammad's life was adapted for twenty verses of the Qur'an. … However, it is now shown beyond any reasonable doubt that this is the case for a text contemporary with Muhammad.⁵

Van Bladel is careful about scope, and the caution must be quoted with the claim.  In the same paragraph he writes:  "This is not a sweeping theory about the formation of the Qur'an, for it only concerns one small portion of a text agreed upon by almost all to have been compiled from different oral and written materials collected together after the death of the prophet."⁵

And he makes an observation that cuts entirely the Muslim way, which is worth quoting because almost nobody does.  Having established the relationship, van Bladel turns to the language and finds that "where the Qur'an is definitely reinterpreting a Syriac text, not a single Syriac word is found, but rather there are true Arabic equivalents of Syriac words.  Q 18:83–102 is a distinctively Arabic text and in no way is it Syriac."  He concludes:  "In a sense this Syriac Alexander legend vindicates the reliability of some basic, traditional claims about this Qur'anic passage, providing means to verify Arabic tradition."⁵  The one passage of the Quran where dependence on a Syriac text is best argued is also a passage where the traditional Muslim lexicography of the Arabic turns out to be right.  That is a hard result for Luxenberg and a good one for the Muslim reader.

The pushback, and why nobody should call this settled.  Tommaso Tesei published The Syriac Legend of Alexander's Gate with Oxford University Press in 2023.  Its stated thesis:  "While the scholarly consensus commonly dates the Neshana to the time of Heraclius (r. 610-641 CE), in this book author Tommaso Tesei argues that an earlier version of the text was produced during the reign of Justinian I (r. 527-565)."⁴²  That book could not be obtained for this article, and its argument is therefore not assessed here — only its claim is reported.  Anyone who wants to settle this has to read it.

But the direction of the claim is clear, and it cuts three ways at once:

• It removes the chronological squeeze. If a version of the Neshana existed under Justinian, sixty years before Muhammad's first revelation, then nothing about Quran 18 constrains the Quran's date, and van Bladel's "text contemporary with Muhammad" stops being the point.
• It makes ordinary borrowing easier, not harder. A Syriac legend circulating for two or three generations has far more chance of reaching Arabia than one published in Mesopotamia two years before Muhammad died. Tesei's redating strengthens the intertextual claim while destroying the dramatic one.
• It undercuts van Bladel's elimination of a common source. Van Bladel ruled that out precisely because the shared material seemed welded to 628–630. Tesei's argument is that the weld is a later join: Oxford's own chapter summary says he treats "the only passage in the text that clearly indicates a seventh-century dating — the 940 ag prophecy referring to events that occurred between 626 and 629 ce" as "an interpolation within an earlier composition dating to the end of the reign of Justinian."⁴² That is precisely the sentence van Bladel's dating rests on. If the core narrative predates Heraclius and the Heraclian prophecy is a later layer, that reasoning has to be redone.

One more thing, and it stops any Muslim from treating Tesei as a rescue.  Tesei's own view of the Quranic passage is more radical than van Bladel's, not less.  Writing in the Journal Asiatique in 2021, he says that "certain Qur'anic passages, e.g., Q 18:83-102 and Q 30:2-7, seem to refer to a political scenario outside of a local Arabian context and likely were composed during the first Arab expansions into Byzantine territory."⁴³  He redates the Syriac text earlier and dates the Quranic passage later than the tradition does.  A Muslim who reaches for the 2023 book to answer van Bladel is reaching for a scholar whose position on the Quran is harder to accept than the one he is answering.

What is not in dispute.  The parallel itself.  Five episodes in the same order, the same barrier of iron and brass, the same eschatological nations.  Theodor Noldeke saw it in 1890 and nobody has explained it away.  What is disputed is the date of the Syriac text, and therefore what the parallel proves.

Verdict:  dependence on the Alexander Legend tradition is the strongest case in the intertextual literature.  The chronological argument built on top of it is not safe and must be presented as contested.  An article that says "the Quran copies a Syriac text of 630" is stating a live scholarly claim as though it were a fact.  Tesei's 2023 book is the reason not to.  And note that both van Bladel and Griffith end at the same place:  no Arabic version of the Neshana is attested, no manuscript links the two, and the Quran matches the plot, not the words.

The Jewish material

Quran 5:32 and Mishnah Sanhedrin 4:5

This is the best-attested case in the entire subject, Jewish or Christian, and it is not close.

Quran 5:32 comes immediately after the Quran's Cain and Abel story.  Sahih International:

Because of that, We decreed upon the Children of Israel that whoever kills a soul unless for a soul or for corruption [done] in the land - it is as if he had slain mankind entirely.  And whoever saves one - it is as if he had saved mankind entirely.⁴

Abdel Haleem:  "On account of [his deed], We decreed to the Children of Israel that if anyone kills a person - unless in retribution for murder or spreading corruption in the land - it is as if he kills all mankind, while if any saves a life it is as if he saves the lives of all mankind."⁴

The Arabic opens min ajli dhalika katabna ala bani Isra'il — "because of that, We wrote upon the Children of Israel."  Two things in that clause carry the argument.  Katabna is "We wrote."  And min ajli dhalika, "because of that," ties the ruling back to the murder just narrated.

The Jewish text is Mishnah Sanhedrin 4:5, the warning a court delivers to witnesses in a capital case.  In the Kaufmann manuscript, the best witness to the Mishnah:  "Therefore man was created single in the world, to teach that anyone who destroys a single soul — it is accounted to him as though he had destroyed a whole world.  And anyone who preserves a single soul — it is accounted to him as though he had preserved a whole world."⁴⁴

And two lines earlier the Mishnah gives its reason, and the reason is Cain:  "For so we find with Cain, as it is said, 'The voice of your brother's bloods cries to Me from the ground.'  It does not say 'your brother's blood' but 'your brother's bloods' — his blood and the blood of his descendants."⁴⁴

There is a textual problem here that neither side usually handles correctly, and it decides the case.  The printed Mishnah and the printed Babylonian Talmud at Sanhedrin 37a both read "a single soul from Israel" — nefesh ahat mi-Yisrael.  The Kaufmann manuscript does not have those words.  Neither does the Mishnah as embedded in the Jerusalem Talmud at Sanhedrin 4:9.  That is two independent Palestinian witnesses, one manuscript and one Talmudic recension, against the later printed books.  Ephraim Urbach compared the manuscripts and early prints and concluded that "in Israel" is a later interpolation, inserted because the courtroom scenario the Mishnah is discussing applied only to Jews, and then hardened into part of the maxim.⁴⁵

The consequence cuts both ways.  A Muslim apologist who says the Mishnah was tribal and the Quran universalised it is arguing from a corrupt printed text.  A Christian apologist who says the Quran botched the Mishnah by dropping "from Israel" is arguing from the same corrupt printed text.  The Quran's man qatala nafsan matches the best Jewish manuscript exactly.

Four independent points converge, which is why this case is so strong.

1. The Quran attributes the saying to Israel. It does not present the maxim as new. It says God decreed it upon the Children of Israel.
2. The maxim is not in the Torah. Nothing in Genesis, Exodus, Leviticus, Numbers or Deuteronomy says this. It is a rabbinic derivation from the grammatical plural demei in Genesis 4:10.
3. The Quran preserves the Mishnah's own sequence. Cain kills Abel; therefore this ruling. The connective min ajli dhalika is otherwise inexplicable — it is the Mishnah's lefikhakh, "therefore."
4. The wording tracks. The one substantive difference is that the Mishnah says "a whole world" where the Quran says "all mankind" — a natural shift for a text addressing gentiles.

Abraham Geiger made this identification in 1833 and it has never been overturned.¹⁶

Something odd and worth noting:  here the Quran works as a text-critical witness.  Quran 5:32 is an early external attestation of the shorter, universal reading of a Mishnah passage whose printed text was later narrowed.  The observation is Philologos', writing in Mosaic in 2016:  Urbach never mentioned the Quran, but "the interesting thing about Sura 5 of the Quran is that, although unmentioned by Urbach, it confirms his findings."⁴⁵  It is not the result either side of the usual argument was looking for.

The strongest Muslim response.  That God, who gave the Torah, may state a ruling He had earlier given to Israel, whether or not the written Torah recorded it.  On the Muslim view the Mishnah preserves an authentic oral tradition, and the Quran confirms it.  That response is coherent and the parallel alone cannot refute it.  What the parallel does establish is that whoever composed Quran 5:32 knew a specific rabbinic homily and its scriptural derivation.  Whether that knowledge came by revelation or by contact is a separate question.

Cain, Abel, and the raven — the case that fails on dates

Quran 5:31:  "Then Allāh sent a crow searching [i.e., scratching] in the ground to show him how to hide the disgrace of his brother.  He said, 'O woe to me!  Have I failed to be like this crow and hide the disgrace [i.e., body] of my brother?'"⁴⁶  Pickthall renders ghurab as "raven."  The one being taught is Cain, the murderer.

The source everyone cites is Pirqe de-Rabbi Eliezer 21, and it cannot be used.  In that text a raven buries its dead fellow in front of Adam and Eve, who do not know what to do with Abel's body, and Adam says:  "Like this raven will I act."¹⁷  Two differences the popular version of the argument suppresses:  in Pirqe de-Rabbi Eliezer the raven teaches Adam, not Cain, and there are two ravens, one already dead.  Geiger noticed this in 1833 and said so:  "What is here attributed to Cain is ascribed by the Jews to his parents."¹⁶

And the date is fatal.  Pirqe de-Rabbi Eliezer is conventionally dated to the eighth or ninth century CE, and is widely held to show knowledge of Islam.¹⁷  It is a century or two later than the Quran.  Citing it as the Quran's source is a straightforward chronological error, and it is one of the commonest errors in Christian polemical writing on this subject.  The direction of borrowing may well run the other way.

The better candidate is Midrash Tanhuma, Bereshit 10, and it is still not good enough.  There God causes one clean bird to kill another, the survivor buries its victim, and "Cain learned from this what to do."⁴⁷  Here it is Cain who learns, exactly as in the Quran.  But the printed Tanhuma is not securely pre-Quranic either.  Marc Bregman's stratigraphic analysis distinguishes an early stratum, possibly fifth century, from the printed recension, commonly dated to the eighth or ninth.  Which stratum this passage belongs to could not be established for this article.

Verdict:  unresolved, and it should be stated as unresolved.  There is no securely pre-Quranic Jewish text with the burial-teaching bird.  Anyone who says otherwise has not checked the dates.

Abraham smashes the idols

Quran 21:57–69 has Abraham break his people's idols "into fragments, except a large one among them," and then, when accused, say:  "Rather, this - the largest of them - did it, so ask them, if they should [be able to] speak."  His people answer:  "Burn him and support your gods."  God says:  "O fire, be coolness and safety upon Abraham."⁴⁸  Quran 37:97 has them say, "Construct for him a structure and throw him into the burning fire."⁴⁹

Genesis Rabbah 38:13 has the same scene, joke for joke.  Abraham is left minding his father Terah's idol shop.  A woman brings a dish of fine flour as an offering.  "He arose, took a club in his hand, shattered all the idols, and placed the club in the hand of the largest among them."  Terah demands to know who did it.  "This big idol, who was standing among them, got up and took the club and shattered them."  Terah:  "What, are you mocking me?  Are they sentient at all?"  Abraham:  "Do your ears not hear what your mouth is saying?"  Terah hands him to Nimrod, who says:  "I bow down only to fire.  I will cast you into it, and let that God to whom you bow down come and rescue you from it."  And Abraham descends into the fiery furnace and is rescued.²¹

The dating is not in dispute.  Genesis Rabbah is a Palestinian midrash redacted around 400–450 CE, two centuries before the Quran.  And the core of the tradition is far older.  The Book of Jubilees 12, from about 160–150 BCE, has Abram burn the house of idols.  The Apocalypse of Abraham 1–8, from about 100 CE, has Abraham reason his way out of Terah's idol workshop, mock the wooden gods, and see Terah's house consumed by fire.  The furnace itself comes from reading Ur Kasdim in Genesis 11:28 as ur, "fire," and that reading is attested in Jewish sources long before Islam.

This parallel is real, the sources are securely earlier, and there is no dating dispute.  It is a better case than the raven, and it is under-used by critics, who prefer the flashier but weaker parallels.

The Muslim response, and it has real force.  The Quran omits Nimrod entirely — the antagonists are simply "his father and his people," which is a difference from Genesis Rabbah, not a copy of it.²¹  And the Quran's Abraham cycle serves a live seventh-century purpose:  a lone monotheist against a city of idols is the shape of Muhammad's own situation.  A defender can say the selection is homiletic rather than derivative, and he is not obviously wrong.

Solomon, the hoopoe, and the glass floor

Quran 27:20–44 has Solomon, taught the speech of birds, muster his troops of jinn, men and birds, notice the hoopoe missing, and threaten it.  The bird returns with news from Sheba:  a woman rules there, and "I found her and her people prostrating to the sun instead of Allāh."  Solomon sends a letter by the bird.  The queen sends gifts, then comes.  At the end:  "She was told, 'Enter the palace.'  But when she saw it, she thought it was a body of water and uncovered her shins [to wade through].  He said, 'Indeed, it is a palace [whose floor is] made smooth with glass.'"⁵⁰  None of that is in 1 Kings 10 or 2 Chronicles 9.  The bird, the letter, the sun-worship, the glass floor and the bared legs are all extra-biblical.

Targum Sheni to Esther 1:2 has all of it, and it cannot be used.  In the Targum, Solomon rules beasts, birds, demons, spirits and liliths.  A bird — the tarnegol bara, the "wild cock" — is missing from the muster and the king threatens to destroy it.  It reports a city in the east ruled by a woman "and her name is the Queen of Sheba."  A letter is tied to the bird's wing.  The queen goes out at dawn to bow to the sun.  Her nobles say "we do not know King Solomon."  She loads ships with gifts.  Solomon sits in a house of glass;  she lifts her skirt to cross what she takes for water;  he sees hair on her leg and says, "your beauty is the beauty of women and your hair is the hair of men."¹⁸

The correspondence is dense, and the sun-worship detail in particular is in both and in neither Bible.  But the date is the problem, and Sefaria's own catalogue entry states it plainly:  Targum Sheni "is especially difficult to date, and scholars have provided dates of composition ranging from the fourth to the 11th centuries, with a date somewhere in the middle being the most likely."¹⁸  The two standard modern treatments, Bernard Grossfeld's and Beate Ego's, are commonly reported to place it around the late seventh or early eighth century — contemporary with or later than the Quran — though neither was opened for this article.¹⁸  It cannot be used as the Quran's source without begging the question, and the reverse dependence — the Targum drawing on material that reached it through Islamic channels — is a live possibility that its dating leaves open.¹⁸

What can be dated changes the picture, and it does not help the Muslim side much.  The Babylonian Talmud at Gittin 68a–b, redacted around 500–600 CE and therefore securely pre-Quranic, already has most of the machinery.  Solomon summons and binds Ashmedai, king of the demons, to build the Temple.  He needs the shamir, which is entrusted to the tarnegol bara, the wild cock — and the Gemara identifies the bird explicitly as dukhifat, the hoopoe of Leviticus 11:19.  Solomon's men trap it by covering its nest with translucent glass.  And Benayahu ben Yehoyada is Solomon's agent — the same Benayahu who meets the Queen of Sheba in Targum Sheni.⁵¹

So Solomon commanding demons, the hoopoe under the name "wild cock," glass used against it, and Benayahu as the king's agent are all attested a century or more before the Quran.  Solomon's power over spirits is older still — Josephus reports it in the first century.

Honest verdict.  The specific Targum Sheni narrative cannot be dated before the Quran, so the usual claim overreaches.  But the ingredient set is demonstrably pre-Quranic.  The reasonable conclusion is a shared, circulating late-antique Solomon legend on which both the Quran and Targum Sheni draw — not the Quran copying Targum Sheni.

One further datum, which shows the channel without settling the question.  Targum Sheni's hairy-leg motif is absent from the Quran but present in the earliest Muslim commentary.  Al-Tabari on Quran 27:44 reports, on the authority of Muhammad ibn Ka'b al-Qurazi, that the jinn told Solomon, to put him off Bilqis, that "her leg is the leg of a donkey, and her mother was of the jinn.  So Solomon ordered the palace to be built."⁵²  That is the Targum's motif, in Muslim hands, within three centuries of the Quran.  It shows a live channel of Jewish haggadah into Islamic tradition.  It does not show that the Quran itself used Targum Sheni.

al-Samiri and the golden calf

Quran 20:85–97 tells the golden calf story and names the man who made it al-Samiri.  "We have tried your people after you [departed], and the Sāmirī has led them astray."⁵³  The calf lows, and the people say, "This is your god and the god of Moses."⁵⁴  Moses questions al-Samiri, who answers that he "took a handful [of dust] from the track of the messenger," and Moses sentences him to say la misasa, "no contact," for life.⁵⁵

The difficulty is the name.  The Arabic is al-Samiri, with the definite article — a nisba, a relative adjective, "the Samirite" or "the Samaritan."  Samaria was founded by Omri in the ninth century BCE, per 1 Kings 16:24, and the Samaritans as a community are later still.  Putting a Samaritan at Sinai is an anachronism of several centuries at minimum.  The "no contact" sentence reinforces the reading, because avoidance of ritual contact with outsiders is a stock feature of how others described Samaritans.

The best defence is Michael Pregill's, and it is a serious one.  In The Golden Calf between Bible and Qur'an (Oxford, 2020) he argues that the name is not a blunder but a deliberate biblical allusion, and that the Quran's calf narrative engages the Bible directly rather than the midrash.  Zohar Hadromi-Allouche's review summarises:  Pregill "refutes the midrashic origin of al-sāmirī by showing suggested sources as probably later than the Qur'an," and identifies al-Samiri with Aaron himself, through a wordplay on the Hebrew shomer, "watchman," and the Samaria calf cult.⁵⁶  The biblical hook is real and checkable.  Hosea 8:5–6, in the 2023 gender-sensitive revision of the JPS Tanakh:  "I reject your calf, Samaria! … the calf of Samaria shall be reduced to splinters!"  The 1985 JPS prints "He rejects your calf, Samaria," following the Hebrew, and puts "I reject" in a note as an emendation;  the difference does not touch the point, which is the calf and the city.  And 1 Kings 12:28, of Jeroboam's calves:  "This is your god, O Israel, who brought you up from the land of Egypt!" — close to the Quran's "This is your god and the god of Moses."  On that reading the Quran is doing what the biblical writers did:  projecting the Samarian calf cult back onto Sinai and labelling the calf-maker with the cult's home.

How much weight it bears.  Pregill's book is well regarded.  But the identification of al-Samiri with Aaron is his own and is not a consensus, and the Quran itself distinguishes them:  Moses questions Aaron at 20:92–94 and then turns and questions al-Samiri at 20:95.  Every classical Muslim commentator found two people there.  Pregill's own words are not quoted here because his book could not be obtained;  he is represented through a review, and that is a real limitation.

Fair statement of the state of play.  The "Samaritan" label is a genuine difficulty and cannot be waved away, because the definite article marks it as a group-name rather than a personal name.  Pregill supplies the best defence available, grounded in a real biblical link between calves and Samaria.  A reader is entitled to conclude either that the Quran made an anachronistic error or that it made a deliberate allusion in the manner of Hosea.  It should not be presented as settled in either direction.

Haman at Pharaoh's court

Haman appears six times in the Quran, always beside Pharaoh and never beside a Persian king.  Quran 28:38:  "And Pharaoh said, 'O eminent ones, I have not known you to have a god other than me.  Then ignite for me, O Hāmān, [a fire] upon the clay and make for me a tower that I may look at the God of Moses.'"⁵⁷  Quran 40:36–37 repeats the order.⁵⁸  Quran 29:39 and 40:24 list "Qārūn and Pharaoh and Hāmān" in one breath — Korah of Numbers 16, Pharaoh of Exodus, and Haman of Esther.⁵⁹

Haman in the Hebrew Bible is the vizier of Ahasuerus — Xerxes I, who reigned 486–465 BCE — in Susa.  The Exodus, on any dating, is at least eight hundred years earlier and in another country.

The spelling is the hard datum.  Hebrew Esther has הָמָן:  he, mem, nun.  The Quran has هَامَان:  ha', alif, mim, alif, nun.  Consonant for consonant, h-m-n, with the Arabic ha', which is the regular correspondent of Hebrew he.

The Muslim answers, at full strength.  First, that names recur and the Quran nowhere says its Haman is the Persian one.  Geiger himself allowed the point, noting that later Arabs do not use the name for Ahasuerus's minister.¹⁶  This answer is unfalsifiable and therefore weak, but it is not absurd.  Second, that Haman is a title rather than a name;  no evidence has ever been produced that it functioned as an office-title in Egyptian, Hebrew or Arabic.  Third, and most often cited, Maurice Bucaille's Egyptological argument:  that an unnamed "prominent French Egyptologist" pointed him to Hermann Ranke's dictionary of Egyptian personal names, where he found the name in hieroglyphs, and "was stupefied to read the profession of Haman:  'Chief of the workers in stone-quarries,' exactly what could be deduced from the Qur'an."⁶⁰

Ranke's page 240 was read as a page image from the Heidelberg digitisation for the dossier behind this article.  Four things are readable off it.⁶¹

1. Ranke's transliteration is ḥmn-ḫ, not ḥmn. There is a final consonant, and Ranke does not delete it — his footnote asks whether it abbreviates a longer name: "Whether abbreviated for ḥmn-ḥtp(w)?"
2. Ranke gives no translation for the entry. His preface says he translates full names and leaves short forms untranslated, so he is treating this as a short form.
3. The element ḥmn is theophoric — the god Hemen. The neighbouring entries prove it: ḥmn-ʿ3, "the god ḥmn is great," and ḥmn-ḥtp, "the god ḥmn is gracious." It is not itself a personal name.
4. The initial consonant is ḥ, not h. Egyptian ḥ corresponds to Arabic ha' with a dot below (ح), not the plain ha' (ه). A borrowing of ḥmn into Arabic would give Ḥaman. The Quran has the plain ha' — matching Hebrew Haman exactly.

The "chief of the workers in the stone-quarries" title comes not from Ranke but from Walter Wreszinski's 1906 catalogue of Vienna inscriptions, which Ranke cites.  That page could not be opened:  the archive.org scan's page order does not follow the printed pagination and its OCR is unusable.  The title is therefore reported here as Ranke's reference plus Bucaille's report, not as something verified.  It does not change the outcome, because points 1, 3 and 4 are fatal on their own.

What the tower actually is.  Quran 28:38 has Pharaoh order Haman to kindle a fire on clay and build a tower to reach heaven.  Compare Genesis 11:3–4:  "Come, let us make bricks and burn them hard. … Come, let us build us a city, and a tower with its top in the sky."  Fired brick and a tower to heaven are the Babel scene, not an Egyptian one.  Egypt built in stone and sun-dried mud brick;  kiln-fired brick as a monumental material is Mesopotamian.  The Quran has moved the Tower of Babel to Egypt and given it a builder whose name is the Hebrew name of Ahasuerus's vizier.

A gap that must be stated.  Adam Silverstein has argued in a 2008 article and a 2018 Oxford book that the Quranic Haman reflects a pre-Islamic Arabian reception of Esther material rather than a simple confusion.  Neither could be obtained.  Silverstein is the leading academic treatment and his case is not represented here at its own strength.  A reader should treat this section as incomplete on that point.

Fair verdict.  Haman is the strongest single anachronism argument against the Quran in this material — stronger than al-Samiri — because the name matches the Hebrew consonantally, the setting is a different empire a millennium away, and the scene attached to him is a different biblical story.  Bucaille's Egyptological rescue does not survive contact with Ranke's own page.  The honest residue is that "a different man with the same name" cannot be strictly disproved.  It can only be judged improbable.

Mary called "sister of Aaron" — and what the earliest Muslims did with the objection

This is not a borrowing question.  It is a chronology-and-identification problem inside the Quran, and it belongs here because it shows how much Israelite material reached the Quran's world through channels that had already blurred Miriam into Mary.  It also produces the single most valuable piece of evidence in this whole subject, because for once the evidence is Muslims reporting on themselves.

Quran 19:28 has Mary's accusers address her:  "O sister [i.e., descendant] of Aaron, your father was not a man of evil, nor was your mother unchaste."⁶²  The bracketed gloss is Sahih International's.  Pickthall, without interpolation:  "O sister of Aaron!  Thy father was not a wicked man nor was thy mother a harlot."  The Arabic says ukht, "sister."  Related:  Quran 66:12 calls her "Mary, the daughter of ʿImrān," and Quran 3:35 has "the wife of ʿImrān" vow her unborn child.⁶³  Imran is the Arabic for Amram, the father of Moses and Aaron in Exodus 6:20.  So the Quran gives Mary the mother of Jesus the father and the brother of Miriam the sister of Moses.

The hadith.  Sahih Muslim 2135, in the Book of Manners and Etiquette, chapter on names:

Mughira b. Shu'ba reported:  When I came to Najran, they (the Christians of Najran) asked me:  You read "O sister of Harun" (i.e. Hadrat Maryam) in the Qur'an, whereas Moses was born much before Jesus.  When I came back to Allah's Messenger I asked him about that, whereupon he said:  The (people of the old age) used to give names (to their persons) after the names of Apostles and pious persons who had gone before them.⁶⁴

Sahih Muslim carries no external grading line;  inclusion in the Sahih is itself the claim, and Sunni Muslims accept this report as sound.  Al-Tabari preserves the same report on Quran 19:28 through a chain running al-Mughira ibn Shu'ba → Alqama ibn Wa'il → Simak ibn Harb, with the Prophet's answer:  "Did you not tell them that they used to name [their children] after their prophets and after the righteous who came before them?"⁶⁵

Three things this report establishes, and they matter more than any modern argument.

1. The objection is not a modern orientalist invention. Christians raised it during Muhammad's lifetime, in Arabia, to Muhammad's own envoy, and the chronology gap was the point.
2. Muhammad's answer treats "Aaron" as a personal name borne by a contemporary of Mary, not as a tribal or genealogical idiom. That is a different answer from the one most modern Muslim apologists give.
3. The Muslim tradition judged the difficulty serious enough to preserve a prophetic ruling on it. Nobody buries what does not bother them.

And there is a second early Muslim reaction that is more revealing still.  Al-Tabari preserves, from Muhammad ibn Sirin:

I was told that Ka'b said:  His words "O sister of Aaron" — this is not Aaron the brother of Moses.  Aisha said to him:  You lie.  He said:  O Mother of the Believers, if the Prophet said it, he knows better and is better informed;  but otherwise, I find between the two of them six hundred years.  And she fell silent.⁶⁵

Ka'b al-Ahbar was a Jewish convert, and he is doing arithmetic.  Aisha's first instinct was to deny the problem;  the arithmetic silenced her.  Al-Tabari's other reports go the other way:  Qatada says there was a righteous man named Aaron among the Israelites to whom Mary was likened, and adds that when he died forty thousand men named Aaron walked in his funeral.⁶⁵

The strongest Muslim response, and it is a good one.  Three parts.  First, Semitic kinship idiom is broad;  Luke 1:5 calls Elizabeth "of the daughters of Aaron," meaning priestly descent, not literal parentage.  Second, Mary had priestly connections — Luke 1:36 makes Elizabeth her kinswoman — so "sister of Aaron" as a lineage marker is intelligible.  Third, late antique Christian and Syriac writers freely typed Mary against Miriam, and both names are in fact the same name, Maryam.

What the response does not cover.  Two things.  Ibnata Imran at Quran 66:12 is harder than ukht Harun:  "daughter of Amram" is a filiation, and filiations are the least elastic part of a Semitic naming system.  And the Prophet's own answer in Sahih Muslim 2135 does not use the kinship-idiom defence at all.  It uses a different defence — that people were named after earlier prophets.  Those two defences are not the same defence, and the modern one is not the one the hadith gives.

Was there an Arabic Bible before Islam?

This is the hinge of the whole question.  If a written Arabic Bible existed in Arabia before Islam, then "copying" becomes simple:  there was a book to copy from.  If it did not, then every parallel above had to travel by ear, and the Quran's biblical retellings should look like preaching rather than reading.  They do.

Sidney Griffith's The Bible in Arabic (Princeton, 2013) is the standard treatment, and his case has four steps, each of them on the page.

Step 1 — nothing has been found.  "pre-Islamic, written Bible in Arabic translation has yet come to light."¹

Step 2 — the arguments for one rest on evidence too thin to bear them.  The hypotheses put forward "are based on extrapolations from evidence that first of all is too fragmentary or too far removed in time to logically bear the weight of the conclusions drawn from it," and they "run counter to current scholarly views of the development of literary Arabic and the Arabic script prior to the seventh century."¹

Step 3 — the earliest actual Arabic Bible translations are eighth century, and Christian.  "Our conclusion, based on the available evidence, is that in all probability the earliest Christian translations of the Bible into Arabic appeared in the eighth century in Syria/Palestine. … Many historians of Christianity among the Arabic-speaking peoples have wanted to find evidence for a pre-Islamic Arabic translation of the Bible.  The trouble is that not only is there so far no completely convincing evidence for such a translation, but the existing evidence argues against its probability."¹

Step 4 — but the Bible was in Arabia, orally, and that is what the Quran reflects.

But the absence of a written Arabic version of any portion of the Bible does not mean that there was no Bible in pre-Islamic Arabia.  To the contrary, it is highly probable that the Jewish communities had the Hebrew Bible and the Aramaic Targums in their possession, just as the Christians most likely had their scriptures in Greek and Aramaic/Syriac, for the most part in the keeping of synagogues, churches, and monasteries.  Moreover, in both communities there was a lively oral tradition in circulation, undoubtedly in Arabic, that included Bible history and large amounts of Jewish and Christian lore, composing in the ensemble a sizeable narrative installment of what, borrowing a phrase, we have called the 'interpreted Bible'.  The Qurʾān itself is the single best piece of historical evidence for this state of affairs.¹

And the mechanism:  scriptures kept by institutions rather than individuals, so that "Aramaic, Syriac, and Arabic-speaking Jews and Christians would thus have heard scriptural passages proclaimed in the course of the celebration of the liturgies in their places of study and worship, followed by songs and homilies that unfolded the meanings of the texts for the congregants."¹

Why this explains the shape of every case above.  Each one shows the same signature.  A story-shape survives;  wording does not.  Names drop out — Decius, Joseph the carpenter, the twelve sparrows, Nimrod.  Roles shift — Zechariah becomes the guardian, Mary shakes the tree herself, the raven teaches Cain instead of Adam.  Numbers move — 309 years instead of 372;  three, five or seven sleepers.  Theology is rewritten — bi-idhni llah, inni abdu llah.  That is not what happens when a scribe copies.  It is exactly what happens when material passes through sermons, hymns and shrine lore.  It also explains why the Quran addresses its audience as though they already know:  "they ask you about Dhul-Qarnayn";  "they will say there were three."  These are not narrations.  They are interventions in conversations already under way.

The honest problem with Griffith's account, and it is serious.  There is no positive evidence for organised Christian communities in the Hijaz.  If the transmission was oral, somebody has to have been there doing the talking, and nobody has found them.  Guillaume Dye, Tommaso Tesei and Stephen Shoemaker have all pressed this, and Nicolai Sinai — who is arguing against them — states the difficulty at full strength before answering it.  Shoemaker's version:  "The cultural deprivations of the central Hijaz make it effectively impossible for a text so rich in Christian content, like the Qur'an, to arise strictly within the confines of this evidently Christ-barren milieu."⁶⁶  Dye's methodological objection is sharper still, and Sinai concedes its force:  "Dye complains that an appeal to oral tradition may easily become an unfalsifiable get-out-of-jail card, and one can appreciate the salience of his protestation."⁶⁶

Sinai's own answer is missionary preaching — Christian monks and ascetics setting out from Hira, Bosra or Najran — and he concedes the weakness in the same breath:  "There is, admittedly, no positive evidence at the current time that the Ḥijāz was indeed a significant target of Christian missionary efforts."⁶⁶  And:  "If indeed there were missionary efforts of the sort I have just surmised to have existed, they cannot have been very successful, since we do not hear about them in Christian sources."⁶⁶  His rejoinder is that unsuccessful preaching fits the Quran's own report that its opponents dismissed the message as "ancient scribblings" — people who had heard this before and were tired of it.

A Christian article must not pick a side here silently.  Both options are costly.  Dye, Tesei and Shoemaker conclude that much of the Quran was not produced in the Hijaz at all;  Sinai concludes that the Hijaz was more exposed to Christianity than the surviving evidence records.  The first option would be far more damaging to the traditional Muslim account than anything argued in this article — and it is not the option this article argues for, because it cannot be shown.

What would count as proof that the Quran copied a book?

Four things, in ascending order of force.  None of them exists.

1. A shared phrase. A run of Arabic that tracks a known translation of the source. The Quran's Arabic tracks nothing at present. Van Bladel's finding on Quran 18:83–102 is the opposite: where dependence is best argued, "not a single Syriac word is found."⁵
2. A shared error. A mistranslation, a corruption, or a scribal slip peculiar to one manuscript branch of the source, reproduced in the Quran. This is the strongest single argument in all textual criticism — it is how scholars prove one manuscript descends from another — and nobody has found one here.
3. A pre-Islamic Arabic manuscript of any of these texts. Griffith's chapter says why none is likely to turn up.
4. Reproduction of an arbitrary feature — a numbering, a sequence, a list order — with no independent reason to be there.

The nearest thing to (4) is al-raqim at Quran 18:9:  a word the Quran's own commentators could not explain, which fits the lead tablets in Jacob of Serugh's homily.  That is a fingerprint, not a phrase, and it is fully compatible with hearing the story told.

So the Christian claim that survives is narrower than the one usually made.  Not "the Quran was copied from a book," which cannot be shown and probably is not true.  Rather:  the Quran's non-biblical religious narratives, where they can be traced at all, trace to Jewish and Christian material that was circulating in the world around it before it existed.

The strongest Muslim responses

Stated as a serious Muslim scholar would state it, with nothing softened, and then answered.

The Quran never claims to bring new information.  It claims to be musaddiq li-ma bayna yadayh — confirming what came before it.  Its own account of itself is that the same God who spoke to Moses and to Jesus is speaking again, in Arabic, to a people who had received no messenger.  If a true report about Mary's childhood, or about the youths who slept in the cave, had survived in the memory of the churches — even in books the churches themselves came to distrust — then God's confirming that report is exactly what the Quran says God does.  It is not theft.  A witness who corroborates your account has not plagiarised it.

And look at what the Quran actually does with this material, which the critics record and then pass over.  It removes the Trinity from the mouths of the martyrs of Ephesus.  It removes "I am the Son of God, the Word" from the mouth of the infant and replaces it with "I am the servant of God."  It removes the Roman imperial prophecy from the Alexander story and leaves only the promise of the Last Day.⁵  It adds "by God's permission" four times over to the miracles of Jesus, precisely where the apocryphon made Jesus act in his own power.  These are not the edits of a man copying.  They are the edits of a text that has a doctrine and is imposing it.

Finally, after two hundred years of looking, the critics have produced no book.  No Arabic Bible, no Arabic apocryphon, no Arabic Alexander Legend, no manuscript, no quotation, no shared sentence.  They have produced parallels, and parallels run in whatever direction the scholar's prior commitments send them.

That is a good argument, and two of its three parts survive.

The third part survives completely.  There is no book.  Christians should stop implying there is one, and should stop citing the Arabic Infancy Gospel and Pirqe de-Rabbi Eliezer, which are the two props the claim usually rests on and which cannot be dated before the Quran.

The second part survives as a description and fails as a defence.  It is true that the Quran edits with a consistent doctrinal hand.  But the edits are theological, never historical.  If the Quran's author had independent access to what actually happened, the one thing he was in a position to correct — and did not — was the events.  He corrected the Christology of the cradle speech and kept the speaking infant.  He corrected the Trinity out of the martyrs' confession and kept the three-century sleep.  He stripped the Roman imperial prophecy out of the Alexander story and kept the gate of iron and brass against Gog and Magog.  A confirming witness who reproduces the legend and revises only the doctrine is behaving exactly like a preacher who has heard the story and dislikes the sermon.

The first part is where the answer breaks, and the break is narrow but real.  "God can confirm true material wherever it is found" requires the material to be true.  For the Protevangelium's temple childhood, the Infancy Gospel's clay birds and the three-century sleep at Ephesus, there is no evidence of any kind outside the legends themselves — no earlier source, no documentary trace, and no claim of authenticity from the churches that transmitted them.  Origen knew the Protevangelium and did not treat it as scripture.  So the Muslim reply reduces to:  these things are true because the Quran says so.  That is a coherent position for a believer.  It is not an argument that can be offered to someone deciding whether the Quran is from God, because it assumes the conclusion.

And the sharpest form of the problem is not borrowing at all.  Quran 3:44 presents the lot-casting over Mary as "news of the unseen," revealed because Muhammad "was not with them."  Quran 11:49, after the Noah story, says the same:  "You knew it not, neither you nor your people, before this."⁶⁷  The Quran is not merely retelling.  It is presenting these narratives as knowledge that came from God because it could not have come from anywhere else.  And the lot-casting over Mary appears in a second-century Christian legend and nowhere earlier.  "You were not there" is true of everyone.  It is not the same as "no one around you had heard this."

Two things a Christian must concede in the same breath.

First, the Quran never dates the clay-birds miracle to Jesus' childhood.  Quran 5:110 lists it among signs given across a lifetime.  A Muslim may hold that the Infancy Gospel garbled an adult miracle.  The argument that the Quran "believes an apocryphal childhood story" is weaker than it looks and should not be put that way.

Second, the argument cannot be run on a standard a Christian will not accept for his own scriptures.  A skeptic who thinks the clay birds legendary will think the walking on water legendary too.  The argument here is not that miracles do not happen.  It is narrower, and it has to stay narrow:  the specific texts in question were never received by any church as reliable, and the Quran presents their contents as knowledge no human could have had.

Common objections and responses

"Christoph Luxenberg showed the Quran is a misread Syriac lectionary"

He did not, and the reason should be the philology rather than other scholars' distaste for him.  Two of his readings were checked at the dictionary he himself cites — J. Payne Smith's Compendious Syriac Dictionary (Oxford, 1903) — and the results split.

Test 1, the famous one:  hurun 'in as "white, crystal-clear grapes" at Quran 44:54.  It fails.  Luxenberg does not re-point the Arabic;  he re-reads it through Syriac.  His printed rendering is "We will make you comfortable under white, crystal(-clear) (grapes)" — and "grapes" is in his own brackets, because it is supplied.⁶⁸  Payne Smith's entry for the Syriac word for "white" lists its substantival senses:  the white of an egg;  various white trees and plants;  white metal, tin;  a silver coin;  white garments;  white hair.  Grapes are not among them.  The Syriac for grapes is a different word entirely.⁶⁹  And for the second half, 'in, the dictionary records the sense as "the colour, sparkle of wine, of precious stones" — the sparkle, not the stone.  Where the word denotes a gem it is always in a compound, with a second noun supplying the gem.⁶⁹  So the reading requires supplying a word that is not there and deleting one that is.

Test 2:  iqtarib at Quran 96:19 as "take part in the Eucharist."  The Syriac holds;  the Arabic does not need it.  Payne Smith does carry a noun from the root q-r-b glossed simply "a communicant," and the Eucharist itself is qurbana, "offering," from the same root.⁶⁹  So the sacramental sense is real in Christian Syriac.  But Quran 96:19 is wa-sjud wa-qtarib, "and prostrate and draw near" — ordinary Arabic, needing no emendation, at the end of a surah about prayer and about a man who forbids another to pray.  A new reading is warranted only where the old one fails, and here it does not fail.

That is the honest shape of the whole Luxenberg problem.  The Quran does contain Syriac loanwords.  Syriac words do carry Christian liturgical meanings.  Neither fact licenses re-reading a plain Arabic sentence as a covert liturgical rubric.  And note that van Bladel's finding runs the same way from the opposite direction:  in the one passage where dependence on a Syriac text is best argued, the Quran uses "true Arabic equivalents of Syriac words," not Syriac words.

Three claims a Christian must stop making

"The Quran copied the Arabic Infancy Gospel."  The oldest manuscript of that compilation known to Tischendorf from the library catalogues is Florence, Medicean-Palatine 32, written in 1299;  the first printing is Sike's, Utrecht 1697, from a manuscript since lost.  Tischendorf judged the work a compiler's anthology rather than an author's book, and could not decide whether the Arabic version was ancient.²  Worse, its content runs the wrong way:  that text's infant says "I am Jesus, the Son of God, the Word";  the Quran's says "I am the servant of God."

"Pirqe de-Rabbi Eliezer proves the raven story was borrowed."  It is dated to the eighth or ninth century, after the Quran, and its raven teaches Adam rather than Cain.  If there is dependence, it may well run the other way.

"Sozomen records the palm-and-spring miracle before 450."  He records a tree at Hermopolis bowing to the Christ child.  No palm, no fruit for Mary, no spring.

"The Quran depends on a Syriac text of 630, so the Quran is late"

This is a live scholarly claim, not a fact, and stating it as a fact is how a Christian article gets caught.  Van Bladel and Reinink date the Syriac Alexander Legend to 629–630;  Tesei argued in 2023 for a Justinianic version sixty years earlier, and that book has not been assessed here.  Present the debate;  do not present the conclusion.  Nor should Marianna Klar be enlisted against van Bladel:  her study of the internal structure of surah 18 treats the Alexander background as given, writing that "the suggested Alexander background forms a contextual bridge between verses 60-4 and verses 83-98."⁷⁰

"The Quran's picture of the Trinity proves Muhammad met a Marian sect"

That claim should be retired.  The sect in question is the "Collyridians," known from a single hostile source — Epiphanius of Salamis (d. 403), Panarion 79 — who places them in Arabia in the fourth century.  Nothing links them to the seventh, and Epiphanius' own account of what they believed is not clear enough to build on.  His text was not opened for this article, so nothing is claimed here about what he says beyond that he is the only witness.  And Griffith states the general position:  "there is no indisputable documentary evidence for the presence of any notable Jewish Christian group thriving in Arabia in this period.  Modern scholars who have postulated such a presence have done so, we shall argue, on the basis of extrapolations from their theological interpretations of certain passages in the Arabic Qurʾān."¹  That last sentence names the trap:  inferring a sect from a Quran verse and then explaining the verse by the sect is a circle.

"The Jewish texts borrowed from Islam, so the whole catalogue is worthless"

Half right, and the half that is right has been conceded above.  Pirqe de-Rabbi Eliezer, Targum Sheni and the printed Tanhuma cannot be shown to predate the Quran.  But this does not touch Mishnah Sanhedrin 4:5 (c. 200–220 CE), Genesis Rabbah (c. 400–450), Jubilees (c. 150 BCE), the Apocalypse of Abraham (c. 100 CE), or Bavli Gittin (c. 500–600).  Nor does it touch the Protevangelium of James or the Infancy Gospel of Thomas, whose Syriac copies sit in a sixth-century codex in London.  Discarding the late sources strengthens the remaining case rather than weakening it, because what is left is the material nobody can date away.

"Muhammad learned it all from Waraqa, or from the monk Bahira"

This over-reaches in the direction of a single named informant, and the sources will not carry it — though the strongest version of the objection should be stated first.  Waraqa ibn Nawfal appears in Sahih al-Bukhari 3, Aisha's report of the first revelation, as Khadija's cousin, "who, during the pre-Islamic Period became a Christian and used to write the writing with Hebrew letters.  He would write from the Gospel in Hebrew as much as Allah wished him to write."⁷¹  So the Islamic tradition itself places a scripture-copying Christian inside Muhammad's own household.  The same report closes the door it opens:  Waraqa "was an old man and had lost his eyesight," and "after a few days Waraqa died and the Divine Inspiration was also paused for a while."  Almost everything surveyed in this article was recited years after that.  Bahira appears only in the sira, not in the hadith collections, in a story about a boy on one caravan journey.  Neither is a plausible channel for the volume and specificity of the material surveyed here, and treating a sira-only episode as established fact is exactly the error this series refuses to make.  Griffith's model — liturgy, homily and shrine lore, over decades, in a bilingual environment — explains the evidence far better and requires no informant at all.

"Every religion shares motifs. Parallels prove nothing"

True as far as it goes, and it is why this article puts the dating table first and rates each case separately.  A shared motif proves nothing.  A shared sequence of four non-biblical plot points, in a text four centuries older, is a different kind of fact.  So is a word the Quran's own commentators could not explain that fits an object in a Syriac homily.  The question is never "is there a parallel" but "how specific, and how securely earlier."

"If God is the author, of course the material matches — He gave both"

This is the strongest form of the Muslim answer and it cannot be refuted from parallels.  It can only be tested at the one place where it makes a claim about the world:  the material has to be true.  For Mary's temple childhood, the clay birds and the sleep at Ephesus, there is no evidence outside the legends themselves, and the churches that transmitted them never certified them.  At that point the answer is no longer explaining the evidence;  it is absorbing it.

What evidence would change the conclusion?

What would strengthen the Muslim claim.

• A demonstrably post-Quranic date for the Protevangelium of James. This is not available. Origen cites it, Papyrus Bodmer V carries it in a third- or fourth-century hand, and a Syriac copy sits in a sixth-century codex. If any of that were overturned, the best-dated case in this article would collapse.
• A Syriac Alexander Legend datable after 632, which would reverse the direction of the Dhul-Qarnayn parallel. Nobody argues this; the live argument is over how much earlier than 630 the text is.
• Independent, pre-Christian attestation of any of the legendary episodes — an early source for the temple lottery over Mary, or for the youths of Ephesus. That would convert "the Quran repeats a legend" into "the Quran confirms a suppressed memory," which is the Muslim position, and would make it testable rather than merely assertable.
• Positive evidence that the Quran's Jewish parallels flow the other way. Some already do. If the early strata of the Tanhuma literature and Targum Sheni were securely dated after the Quran, two more cases would move to the Muslim side of the ledger.

What would strengthen the critical claim.

• A shared error. A mistranslation or scribal corruption peculiar to one manuscript branch of a source text, reproduced in the Quran. This would settle the question in a single stroke, and it is the thing to look for.
• A pre-Islamic Arabic manuscript of any biblical or apocryphal text. Griffith's argument is a negative one and negatives are always provisional. One find would overturn it.
• A run of Arabic that tracks a known translation. Nothing does at present, and van Bladel's lexical finding suggests nothing will.
• Documented Christian communities in the Hijaz. This one is double-edged. It would fill the hole in the oral-transmission model — but it would also remove the argument that the Quran could not have arisen there, which is the argument Dye, Tesei and Shoemaker use to move the Quran's composition out of Arabia altogether.

What would not change anything.  Another parallel.  The catalogue of parallels has been growing since 1833 and its growth has not settled the question, because the question was never whether parallels exist.  It is whether any of them can be shown to run through a page rather than through an ear.

Sources

Quran translations are quoted from the editions served by api.quran.com, fetched as JSON and read locally:  Saheeh International (Sahih International), Marmaduke Pickthall (1930), Abdullah Yusuf Ali (1934) and M. A. S. Abdel Haleem (Oxford, 2004).  Sahih International's square brackets are the translator's, not the Arabic, and are kept wherever it is quoted.  Verse numbering follows the 1924 Cairo edition.