Islam

Summary

Thirteen articles ask thirteen questions about Islam.  Each one was researched from primary sources, and each states the Muslim case at full strength before evaluating it.  This page is the front door.  It says where the thirteen came out, what they cost the Christian side, and what they cost the Muslim side.

• The Quran is early, and the popular Christian claim that it is a late invention is dead. The consonantal skeleton — the bare letters, before the dots and vowel marks were added — descends from a single written master copy that is plausibly Uthman's, around 650 CE. The evidence is stemmatic and secular: fourteen early manuscripts reproduce the same meaningless spelling choices in the same places, which happens only if all fourteen were copied from one exemplar.
• Muhammad existed, and the sceptical wing of Christian apologetics is wrong about this. A Greek tract of July 634 reports an armed prophet among the Saracens. A Syriac flyleaf note of about 637 gives his name. A chronicler writing about 640 dates a battle against "the Arabs of Muhammad" to a Friday whose Seleucid year, Roman indiction and Julian weekday all agree.
• The charge that Muhammad was a conscious fraud fails on the tradition's own most trusted records, and three scholars who agree about nothing else — an Anglican Arabist, a Marxist atheist, and the field's most determined sceptic — reject it independently.
• What does not survive is the claim of perfect preservation. Sahih al-Bukhari and Sahih Muslim report material once recited as Quran and no longer in it. The tradition's own answer, naskh al-tilawa, "abrogation of the recitation," concedes the point and relocates the loss from human error to divine intention.
• The Quran's miracle claims fail on their own terms. Not one celebrated "scientific miracle" verse was read in the miraculous sense before the discovery it is said to predict, and several were read in ways that exclude it. The literary-inimitability challenge names no criterion, appoints no neutral judge, and was denied from inside the tradition by a major Muslim theologian, Abu Ishaq al-Nazzam (d. c. 230/845).
• The Quran describes Christian belief inaccurately at one specific point, and it is a point that matters: no church, council or creed has ever put Mary in the Trinity.
• On the crucifixion the first-century evidence wins, but the popular Christian argument is aimed at the wrong target: the substitution story is in the commentaries, not in the Quran.
• The nine standard proof-texts for Muhammad fail in the source languages, and the periklytos emendation at John 14:16 fails on manuscripts copied four centuries before Muhammad was born.
• On violence, neither slogan survives. Islam's sources authorise offensive war and created two permanent institutions no Christian text creates. The same sources restrain warfare in ways popular polemic hides, and conversion demonstrably lagged conquest by three to seven centuries.

Verdict.  Islam's central historical claims do not hold, but they fail in a narrower and more interesting way than popular Christian apologetics says.  The Quran is an early book, well transmitted, and its Arabic is genuinely powerful.  What cannot be established is that it is from God.  Every argument offered for that conclusion — preservation, inimitability, scientific foreknowledge, fulfilled prophecy, prophecies of Muhammad in earlier scripture — either fails outright or turns out to be untestable by construction.  Meanwhile the one place where Islam makes a checkable historical claim against Christianity — that Jesus was not crucified — collides with the best-attested event in the life of Jesus.  The collision is with the reading the commentators built on Quran 4:157, not plainly with the verse, and this series says so rather than claiming the easier win.  Along the way the evidence knocked down a long list of Christian arguments too, and those are printed here in full rather than quietly dropped.

What Islam teaches

Before testing anything, here is the religion as Muslims describe it.  A Muslim reader should be able to check this section against his own sources and find nothing unfair in it.

The confession.  One sentence makes a person a Muslim:  ashhadu an la ilaha illa'llah, wa ashhadu anna Muhammadan rasulu'llah — "I bear witness that there is no god but God, and I bear witness that Muhammad is the messenger of God."  This is the shahada, the witness.  Its two halves are exactly the two things this series ends up testing:  the doctrine of God, and the prophethood of Muhammad.

The five pillars.  Sahih al-Bukhari 8 lists them from Ibn Umar:  "Islam is based on (the following) five (principles):  1. To testify that none has the right to be worshipped but Allah and Muhammad is Allah's Messenger.  2. To offer the (compulsory congregational) prayers dutifully and perfectly.  3. To pay Zakat (i.e. obligatory charity).  4. To perform Hajj. (i.e. Pilgrimage to Mecca)  5. To observe fast during the month of Ramadan."¹  In plain English:  the confession, the five daily prayers, the alms tax, the pilgrimage to Mecca for those who can afford it, and the fast of Ramadan.  Twelver Shia arrange the list differently.

The six articles of faith.  These come from the hadith of Gabriel in Sahih Muslim 8a, where a stranger questions Muhammad in public and turns out to be the angel:  "That you affirm your faith in Allah, in His angels, in His Books, in His Apostles, in the Day of Judgment, and you affirm your faith in the Divine Decree about good and evil."²  Five of the six are stated directly in the Quran at 2:285 and 4:136.³  The sixth, qadar or divine decree, rests on a different textual footing, which is why it became the oldest theological controversy in Islam rather than a settled formula.

God.  Tawhid, the oneness of God, is the controlling doctrine, and Surah 112 is its sharpest statement:  "Say, 'He is Allāh, [who is] One, Allāh, the Eternal Refuge.  He neither begets nor is born, nor is there to Him any equivalent.'"⁴  Shirk — associating a partner with God — is the one sin the Quran says God does not forgive:  "Indeed, Allāh does not forgive association with Him, but He forgives what is less than that for whom He wills."⁵  Two things follow that Christian writers regularly get wrong.  The Quranic doctrine is not that God will not forgive sins;  it is that everything short of shirk is forgivable at His discretion.  And the Quran classifies Trinitarian Christianity as shirk — which is a judgement about a doctrine, not a claim that Christians worship a different deity under a different name.  Allah is simply the Arabic word for God.  Arabic-speaking Christians used it before Islam and use it in their Bibles today, and Muhammad's own father was named Abd Allah.

Prophethood.  Islam claims one religion delivered repeatedly.  Quran 4:163 puts Muhammad in a line running through Noah, Abraham, Ishmael, Isaac, Jacob, Jesus, Job, Jonah, Aaron, Solomon and David.⁶  Islam distinguishes two words the Bible does not.  A nabi, prophet, receives revelation;  a rasul, messenger, is sent with a scripture and a law to a community.  Muhammad is both.  Neither word means chiefly one who predicts the future.  Muhammad closes the line — Quran 33:40 calls him "the Messenger of Allāh and seal [i.e., last] of the prophets," where the bracket is the translators' gloss and the Arabic is khatam al-nabiyyin.⁷  He is the pattern to imitate (Quran 33:21) and, in his own words, "only a man like you" (Quran 18:110).⁸

Salvation.  Judgement in the Quran is weighed, not imputed.  "And We place the scales of justice for the Day of Resurrection, so no soul will be treated unjustly at all.  And if there is [even] the weight of a mustard seed, We will bring it forth."⁹  Heavy scales succeed;  light scales lose.¹⁰  And no one can carry another's load:  five verses say so in identical words, including Quran 53:38.¹¹  This is the real contrast with the gospel, and it must be stated exactly.  What Islam denies is vicarious atonement — that one person's merit or death can discharge another's guilt.  What it does not deny is mercy.  Quran 39:53 is as generous as anything in scripture:  "O My servants who have transgressed against themselves [by sinning], do not despair of the mercy of Allāh.  Indeed, Allāh forgives all sins."¹²  Anyone who says Islam has no concept of grace has not read that verse.

What Islam offers is mercy without a completed ground of assurance.  Sahih al-Bukhari 5673 has Muhammad say "The good deeds of any person will not make him enter Paradise," and, asked whether that includes him, "Not even myself, unless Allah bestows His favor and mercy on me."¹³  In Sahih al-Bukhari 1243 a woman testifies over a dead emigrant that God has honoured him, and Muhammad answers, "By Allah, I too wish him good, but by Allah, I do not know what Allah will do with me though I am Allah's Messenger."¹⁴  Quran 46:9 says the same in the Prophet's mouth:  "nor do I know what will be done with me or with you."¹⁵  The honest Christian claim is not that Muslims earn heaven.  It is that there is no atonement to rest on, because Quran 53:38 rules out the transfer of moral liability.

Who Muslims are.  There were about 2.02 billion Muslims in 2020, 25.6% of the world, up 20.7% over the decade — the fastest-growing major religious group, for demographic rather than missionary reasons.  Pew attributes the growth to "Muslims having a relatively young age structure and high fertility rate":  a median age of 24.1 against a world median of 30.6.¹⁶  The Arab world is a minority of the Muslim world.  Pew's Middle East-North Africa region holds 20.5% of the world's Muslims, and that region excludes Iran and Turkey.  Counting the 22 Arab League states directly gives about 435 million, roughly one in five.  The four largest Muslim populations are Indonesian, Pakistani, Indian and Bangladeshi — 238.99 million, 226.88 million, 213.06 million and 151.44 million.  Nigeria is fifth.  Any writing that treats "Muslim" as "Arab" is wrong about roughly four Muslims in five.¹⁶

Sect labels fit the heartland better than they fit the whole.  Pew's demographic estimate is that 87–90% of Muslims are Sunni and 10–13% Shia.¹⁷  But when Muslims were asked what they call themselves, a quarter answered neither — "just a Muslim" — and in 22 of 38 countries at least one in five gave that answer.  In Indonesia, the largest Muslim country on earth, 56% called themselves "just a Muslim" against 26% who said Sunni;  in Kazakhstan the "just a Muslim" figure is 74%.¹⁷  Sufi affiliation runs from 92% in Senegal to 1% in Morocco.¹⁷  Support for making sharia the official law of the land ranges from 8% in Azerbaijan to 99% in Afghanistan, and Pew says plainly that respondents mean different things by the word.¹⁸  Apart from the shahada itself, very few sentences beginning "Muslims believe" survive contact with the country-level data — which is why this series says "the Quran says," "al-Bukhari records," "71% of Nigerian Muslims told Pew," and not "Muslims believe."

What Christians and Muslims agree on

This section exists because the series is useless to anyone who thinks it was written to score points.  The agreements below are real, and none of them is a courtesy.

Both faiths hold that there is exactly one God, eternal, all-knowing, all-powerful, who created everything that is.  They disagree about God's internal life, not about His number.  Both hold that God created by command rather than from pre-existing stuff.  Both hold that angels are real and that Satan is a real deceiver.  Both hold that God has spoken through prophets and sent scripture, and the Quran names Noah, Abraham, Moses, David and Jesus among the recipients.⁶  Both hold that moral law is objective and given by God, and Quran 6:151 overlaps the Ten Commandments substantially.¹⁹  Both hold that history ends in a day of judgement with real reward and real punishment, and that the dead are raised bodily.

On Jesus the overlap is larger than most Christians expect.  The Quran affirms the virgin birth without hedging:  the angels announce to Mary "a word from Him, whose name will be the Messiah, Jesus, the son of Mary."²⁰  It calls him al-Masih, the Messiah.  It credits him with real miracles — forming a bird from clay and breathing life into it, curing the blind and the leper, raising the dead — each time "by permission of Allāh."²¹  It says he will return.  No other non-Christian scripture says any of this.

The Quran also says things about Christians that Christians rarely quote.  Quran 5:82:  "you will find the nearest of them in affection to the believers those who say, 'We are Christians.'  That is because among them are priests and monks and because they are not arrogant."²²  Quran 29:46 tells Muslims to argue with Christians and Jews "except in a way that is best," and to say "our God and your God is one."²³  Quran 22:40 names monasteries, churches and synagogues — by name, before mosques — among the things divinely sanctioned counter-force exists to protect.²⁴  Quran 49:13 grounds human worth in righteousness rather than lineage:  "the most noble of you in the sight of Allāh is the most righteous of you."²⁵  Quran 2:177 makes care for relatives, orphans, the needy and the traveller part of the definition of righteousness.²⁶

Four achievements deserve saying plainly, not because they settle anything, but because they are true and a grudging article is not worth reading.  Algebra:  Muhammad ibn Musa al-Khwarizmi wrote his book on al-jabr wa'l-muqabala under the caliph al-Ma'mun around 813–833;  the English words algebra and algorithm both descend from it and from his name.²⁷  The translation movement:  under the early Abbasids, Greek scientific and philosophical literature was systematically translated into Arabic, preserving works whose Greek originals are lost.  Theology:  a civilisation that argued for two centuries about whether God's speech is created or uncreated, and produced al-Ashari, al-Baqillani, al-Juwayni and al-Ghazali, is not one without theology.  Source criticism:  the hadith scholars built chain-criticism, the biographical dictionaries of narrators, and a grading vocabulary, independently of anything Western, and they applied it seriously.  Scott Lucas measured how well it reproduced:  comparing grades assigned independently by Ibn Sa'd, Ibn Ma'in and Ibn Hanbal gives 86–87% agreement about which transmitters were reliable.²⁸  The article on hadith reliability argues that the method has real limits.  It says first that the method exists and is serious.

None of this makes the two religions compatible.  Both affirm the virgin birth and draw opposite conclusions from it.  Both expect Jesus to return, and in the Muslim account he returns to break the cross.  The overlap is real, and it is not a road to agreement.

The thirteen questions

1. Where did the Quran come from?

The Muslim claim at its strongest:  the Quran was recited by Muhammad between 610 and 632, memorised and written down by his companions, collected under Abu Bakr and standardised under Uthman around 650, and what exists today is that book.

What the evidence showed.  The strongest part of that claim is now supported by secular manuscript work.  Marijn van Putten tracked how the word ni'mat, "grace," is spelled across fourteen early manuscripts — a choice that carries no meaning at all — and found each occurrence spelled the same idiosyncratic way in all fourteen.  Arbitrary agreement like that descends from one written exemplar.  Radiocarbon puts several early parchments in the seventh century, and the text contains nothing about the Arab conquests or the civil wars that dominate everything Muslims wrote after 650.  The late-dating theories that popular Christian apologetics still uses have been abandoned, in two cases by their own authors:  Michael Cook said of Hagarism in 2021, "I think we got an awful lot of it wrong," and Patricia Crone wrote near the end of her life that "there is no longer any good reason to doubt that ʿUthmān set up a commission that produced a Qurʾān."²⁹³⁰  The live scholarly disagreement is about fifty years, not two hundred:  Nicolai Sinai and van Putten argue for about 650, Stephen Shoemaker for about 700.

An early text is not a divine text.  Dating tells you when words were written down, not who was speaking.  → Where did the Quran come from?

2. Does the Quran contain material taken from earlier books?

The Muslim claim at its strongest:  the Quran confirms earlier revelation because it comes from the same source;  no one has ever produced the book Muhammad is supposed to have copied.

What the evidence showed.  The second half of that is true.  Nobody has produced an Arabic Bible, an Arabic apocryphon, a manuscript, a quotation, or one shared sentence.  Sidney Griffith, the leading specialist in Arabic Christianity, concludes that Arabic translations of the Bible first appear in the eighth century, a hundred years after Muhammad.  But the Quran retells stories that are demonstrably older than it and that are in no Bible:  Jesus animating clay birds is in the second-century Infancy Gospel of Thomas, and Mary's temple upbringing and the casting of lots for her guardianship are in the second-century Protevangelium of James.  Both sit together in one Syriac codex written before Muhammad was born.  The best-dated single case is Quran 5:32 against Mishnah Sanhedrin 4:5, redacted around 200–220 CE:  the Quran attaches a rabbinic inference from the plural "bloods" in Genesis 4:10 to the Children of Israel by name, keeps the Mishnah's Cain-and-Abel setting, and keeps its connective.³¹  The largest case is the one nobody has settled.  Kevin van Bladel argues that Quran 18:83-98, the Dhul-Qarnayn story, reworks a Syriac Alexander apocalypse datable to 629-630, and that "the two texts must be related.  That is the only explanation for their point-for-point correspondence."³²  Tommaso Tesei argued in 2023 for an earlier Syriac core written under Justinian, which would remove the chronological squeeze and make ordinary borrowing easier rather than harder.  Neither position is the field's verdict, and this series does not pretend otherwise.  The transmission looks oral wherever it can be traced, and the critical specialists say so themselves.

The sharpest form of the problem is not borrowing but presentation:  the Quran narrates several of these episodes as anba' al-ghayb, news of the unseen that God reveals.  → Does the Quran contain material taken from earlier books?

3. Has the Quran been perfectly preserved?

The Muslim claim at its strongest:  the consonantal text has been transmitted from Muhammad's recitation without change, guarded by an unbroken chain of memorisers as well as by copies.

What the evidence showed.  Two different claims travel under the word "preserved," and separating them settles most of the argument.  The archetype claim — one written master copy, mid-seventh century, copied with extraordinary care ever since — largely survives, and it is a serious result.  The letter-perfect claim does not survive Sahih al-Bukhari and Sahih Muslim.  Umar preached that a stoning verse "we did recite" is not in the Book.  Aisha said a nursing ruling "was in the Quran and was being recited" when Muhammad died.  Abu Musa told the reciters of Basra that two whole surahs had been recited and forgotten.  The tradition's own answer is naskh al-tilawa, abrogation of the recitation:  God removed those passages deliberately.  That is coherent theology and it is also a concession.  The recited text has never been single either — ten readings are canonical, two are in ordinary print today, and counting the entries in Adrian Brockett's collation of Hafs against Warsh gives 138 differences in the first five surahs alone, four of them in the consonantal letters themselves.  Brockett prints no total;  the 138 is a tally of his own lists.³³

Uthman's committee edited and then burnt the alternatives, which the tradition reports in as many words.  → Has the Quran been perfectly preserved?

4. Did Muhammad exist?

The sceptical claim at its strongest:  Muhammad's name appears on no dated Arabic coin, inscription or state document until the 680s — about fifty-four years after his traditional death.  Robert Hoyland, who catalogued the evidence, says so himself.

What the evidence showed.  The silence is real, and it is only in Arabic, and only in official media.  A Greek tract composed in July 634 reports that "the prophet had appeared, coming with the Saracens," and that an old man dismissed him because "the prophets do not come armed with a sword."³⁴  A Syriac note of about 637 on the flyleaf of a sixth-century Gospel book names Muhammad twice, and Sean Anthony calls it "the earliest extant document to mention Muḥammad tout court by name."³⁵  Thomas the Presbyter, writing about 640, records a battle against "the Arabs of Muḥammad" on Friday 4 February 634, twelve miles east of Gaza — and the Seleucid year, the Roman indiction and the Julian weekday all check out independently.³⁴  Add an Egyptian tax receipt of 643 dated by a calendar counted from an emigration nobody in the seventh century explains, and a rock inscription of AH 24 that dates itself "at the time ʿUmar died."

This article uses the same standards the Berean Archive applies to Jesus mythicism, and says so.  → Did Muhammad exist?

5. Does Muhammad's life look like a prophet's?

The Muslim claim at its strongest:  Muhammad's character is itself evidence.  He gained nothing at Mecca for twelve or thirteen years, died owning almost nothing, barred his own family from the alms revenue he controlled, and delivered revelations that rebuke him.

What the evidence showed.  That case is strong and the deliberate-fraud hypothesis fails on it.  He died leaving no money, a mule, his weapons and a piece of land already given in charity, with his armour mortgaged to a Jew for barley.³⁶  The Quran rebukes its own messenger eighteen times — for frowning at a blind man, for ransoming prisoners, for excusing shirkers — nine of those in Meccan surahs and nine in Medinan ones.  W. Montgomery Watt, an Anglican Arabist, Maxime Rodinson, a Marxist atheist, and Patricia Crone, the field's most determined sceptic, all reject the fraud reading independently.  But a measurable pattern runs the other way and it is measurable in the Quran alone:  21 verses give Muhammad personally a benefit, exemption or deference other Muslims do not get, and all 21 are Medinan;  15 vocative addresses to "the Prophet" are likewise all Medinan.  Most of that is explained by the change from persecuted preacher to head of state, and the article concedes it at length.  What is not explained is the marriage cluster at Quran 33:37, 33:50 and 33:51.  Aisha's remark is in both Sahih collections:  "I feel that your Lord hastens in fulfilling your wishes and desires."

Sincerity and prophethood are not the same finding.  → Does Muhammad's life look like a prophet's?

6. Which hadith count as canon, and how was that decided?

The Muslim claim at its strongest:  the hadith scholars built a rigorous science of transmission, audited each other, and preserved a sifted record of what Muhammad said and did.

What the evidence showed.  Nobody voted.  Al-Bukhari and Muslim b. al-Hajjaj did not fix the six-book list;  their contemporaries attacked the project;  a four-book list is attested in the tenth century and a rival six in the eleventh, and the list that won was written down about 250 years after Bukhari died.  The famous sifting ratio — "600,000 examined, 7,275 kept" — is a conflation of two numbers from different sources counting different things, and both Muslim apologists and Christian polemicists repeat it.  The grading science is real and reproducible:  86–87% inter-critic agreement, and al-Daraqutni criticised 217 narrations inside the two Sahihs themselves.²⁸  Its limit is structural.  It tests who said a thing, not whether the thing happened, and on the tradition's own account the demand for a named chain begins around 690, some sixty years after Muhammad's death.  Most gradings a reader meets online are twentieth-century judgements by Muhammad Nasir al-Din al-Albani or the Darussalam editors, not medieval ones — which is why this series names the grader every time.

A hadith graded sound is a report whose route survived a serious examination.  It is not a transcript.  → Which hadith count as canon?

7. Does the Quran contain scientific miracles?

The Muslim claim at its strongest:  the Quran states facts about embryos, cosmology, geology and oceanography that no seventh-century person could have known.

What the evidence showed.  One test decides this, and it is the same test a Christian apologist must survive on Isaiah 40:22 or Job 26:7:  did the miraculous reading exist before the science did?  Every showcase claim fails it.  Quran 51:47's "expander" was read by al-Tabari, Ibn Kathir and al-Jalalayn as "possessed of ample power," and the mainstream 2015 Muslim commentary The Study Quran still reads it that way.  Quran 57:25's "sent down" iron uses the same verb the Quran uses of cattle at 39:6.  Quran 78:6–7's "pegs" are tent-pegs in every classical source.  The embryology centrepiece has a source problem as well as a dating problem:  the sequence drop → clot → chewed lump is Galen's scheme, four and a half centuries earlier.  The reverse Christian argument fails for the same reason:  the phenomenological defence that rescues Joshua 10:13's standing sun also rescues Quran 18:86's sun setting in a spring, and the classical commentator al-Jalalayn read it that way five centuries before the argument became awkward.

What remains is an ordinary seventh-century picture of the world, which is what a seventh-century book looks like.  → Does the Quran contain scientific miracles?

8. Is the Quran a literary miracle?

The Muslim claim at its strongest:  five verses challenge doubters to produce a surah like it;  in fourteen centuries no one has, and the Quran's Arabic is genuinely extraordinary.

What the evidence showed.  Something real is being pointed at.  The Quran's Arabic is powerful, its effect on hearers is documented from the earliest sources, and Arabic literary norms were partly set by it.  But the doctrine is late — Richard Martin, writing Brill's Encyclopaedia of the Qurʾān entry, dates the earliest texts referring directly to inimitability to the third/ninth century, roughly two hundred years in.³⁷  And it was denied from inside the tradition.  Abu Ishaq al-Nazzam (d. c. 230/845) held sarfa:  that "the Arabs were able to utter speech like that of the Qurʾān with respect to linguistic purity and eloquence" and that God simply prevented them.³⁷  That is a native speaker of classical Arabic, steeped in the text, with every motive to see the miracle, saying it was not there.  The Muslim side is owed the obvious answer:  al-Nazzam's view lost, and a minority position is not right because it is a minority position.  The claim also cannot be adjudicated from outside:  al-Baqillani tells the reader who cannot perceive the beauty to take his seat among those who accept it on authority.  A test whose failure mode is "you lack the faculty" is not a test.

The challenge names no metric, appoints no neutral judge, and has no failure condition.  → Is the Quran a literary miracle?

9. Does the Quran describe Christianity accurately?

The Muslim claim at its strongest:  the Quran corrects Christian error about Jesus, and its critiques of sonship and of "three" are disagreements with real Christian doctrine, not misunderstandings.

What the evidence showed.  Most of the Quran's statements about Christianity are exactly that — disagreements.  Quran 4:171 says "do not say, 'Three,'" and Christians do say three.  Quran 6:101's argument against divine sonship is a biological argument, and Christians agree with every word of it:  God has no body and no consort.  Al-Tabari reports the Christian formula accurately, as one substance in three hypostases.  One verse is different.  Quran 5:116 has God ask Jesus whether he told people to "take me and my mother as deities besides Allāh" — where the Arabic ilahayni is the dual, two gods specifically.³⁸  No church, council or creed has ever put Mary in the Trinity.  The Collyridian sect that Christian apologists reach for cannot carry the weight:  Epiphanius admits he does not know how those women understood what they were doing, and Sidney Griffith finds no indisputable documentary evidence for any such group in Arabia in the period that matters.  The most informative fact is a silence — the Quran never criticises the divinity of the Holy Spirit, which a garbled creed would have left somewhere in the wreckage.

An omniscient author should not need rescuing by the observation that seventh-century Marian worship looked like the worship of a goddess.  → Does the Quran describe Christianity accurately?

10. Did Jesus die on the cross?

The Muslim claim at its strongest:  Quran 4:157 says the Jews did not kill Jesus and did not crucify him, "but [another] was made to resemble him to them."  A Muslim who believes the Quran is God's speech is being consistent, not irrational, in preferring it to human testimony.

What the evidence showed.  The crucifixion is one of the best-attested events in ancient history — a creed Paul says he received and which critical scholars date within a few years of the event, a hostile Roman senator, a Jewish aristocrat writing for Romans, and a professional debunker of religious frauds.  Scholars who reject Christianity entirely still affirm it:  John Dominic Crossan calls it "as sure as anything historical can ever be," Gerd Lüdemann calls it "indisputable," Paula Fredriksen calls it "the single most solid fact about Jesus' life."  But the popular Christian argument aims at the wrong target.  The Quran never says a substitute died in Jesus' place.  That story is in the commentaries, and the commentators could not agree:  a nameless volunteer disciple, or a disciple called Sergius, or Judas, or a Jewish guard, or all seventeen disciples at once, or an assassin called Tityanus.  Fakhr al-Din al-Razi objected from inside the tradition that if God can put one man's face on another, no chain of historical testimony is safe — including the chain carrying Muhammad's own prophethood.³⁹

The historical evidence establishes a death, not a resurrection, and this article says so.  → Did Jesus die on the cross?

11. Is the Bible corrupted?

The Muslim claim at its strongest:  the true Injil — the Gospel God gave to Jesus — is lost, and the four Gospels are human reports about Jesus rather than revelation to him.  No manuscript can refute that, because it makes no claim about any manuscript.

What the evidence showed.  The textual version of the charge does not hold, and the Quran does not make it.  Four verses use a form of harrafa, and the phrase is "they shift the words out of their places" — all four aimed at Jews, never at Christians.  Gabriel Said Reynolds, who is not defending Islam:  "neither here nor elsewhere … does the Qurʾān argue that the Bible of the Jews and Christians is falsified (5:47 and 10:94 actually suggest that the Bible is reliable)."⁴⁰  Sahih al-Bukhari's own chapter heading quotes Ibn Abbas glossing the word to mean displacement of meaning, not of wording — though that heading is a ta'liq, a remark carried without a chain, which is the weakest class of material in the collection, and the same collection has Ibn Abbas saying the opposite two books away.  The tradition is split, and this series says so instead of mining one side.  Camilla Adang found that of nine medieval Muslim writers on the Hebrew Bible, only al-Maqdisi and Ibn Hazm held the text itself was distorted.  And the physical fact is decisive against the post-Muhammad version:  the Great Isaiah Scroll was copied around 125 BC, Codex Sinaiticus in the mid-fourth century, and Ibn Taymiyya himself wrote that "Whoever says that, after the Prophet, all copies have been corrupted, he has said what is manifestly false."⁴¹

The lost-Injil fallback survives the manuscripts and has no evidence of its own.  → Is the Bible corrupted?

12. Is Muhammad prophesied in the Bible?

The Muslim claim at its strongest:  the Quran says the People of the Book find the coming messenger "written" with them, and nine claims have been built on that since the ninth century — Deuteronomy 18:15-19, Deuteronomy 33:2, Isaiah 42, Isaiah 29:12, Habakkuk 3:3, Song of Songs 5:16, the Paraclete of John, the sacrifice of Abraham's son, and the name Ahmad at Quran 61:6.

What the evidence showed.  Each fails in the language it was written in.  Deuteronomy 18:15 says mi-qirbekha, "from your own midst," and twenty verses earlier, at Deuteronomy 17:15, the same book defines the phrase by excluding the foreigner.  Habakkuk's two words read as "Muhammad" come from other roots — hod, splendour, and the root of hallelujah.  Machamaddim in Song of Songs 5:16 is a common noun standing in exact parallel to mamtaqqim, "sweetnesses," in the same clause;  if one is a name, so is the other.  The Paraclete claim is the one settleable with documents, and it is settled:  transcriptions of P66 and P75, both copied around 200 AD, and of Sinaiticus, Vaticanus, Alexandrinus and Bezae, all read parakletos.⁴²  Periklytos occurs zero times in the Greek New Testament and zero times in the Greek Old Testament.  The emendation did not come from Muslims:  its first known appearance is in Ludovico Marracci's Refutatio Alcorani, Padua 1698.⁴³

Several of the underlying associations are real;  what fails every time is the step from association to identification.  → Is Muhammad prophesied in the Bible?

13. What do Islam's own sources teach about violence?

The Muslim claim at its strongest:  the Quran forbids compulsion in religion, orders inclination to peace, exempts treaty-keepers by name, and commands kindness to non-Muslims who do not fight;  the martial verses are situational.

What the evidence showed.  Both kinds of verse are really there, and a case built on one half is not a case.  The verse of the sword, Quran 9:5, is almost never quoted with 9:4, 9:6 and 9:7 beside it, and a polemic that prints it alone has destroyed its own credibility, because the next verse grants protection and safe conduct to any polytheist who asks to hear the Quran.  Against that, classical law made two things permanent that no Christian text creates:  jihad as a communal obligation binding until the end of the age, and dhimma, a permanent subordinate status for conquered non-Muslims.  Al-Tabari glosses "while they are humbled" at Quran 9:29 as "abased and subdued."⁴⁴  Muhammad's Medinan career was not purely defensive — al-Waqidi's own summary has him lead twenty-seven expeditions and fight in nine, and Tabuk was a march toward Byzantine territory by an army no one had attacked.⁴⁵  But "Islam spread by the sword" fails as a demographic claim:  Islam became the majority religion of Iraq and Khurasan only in the tenth century and of Egypt around the fourteenth.

This is a finding about law, not about body counts, and not about 2 billion people.  → What do Islam's own sources teach about violence?

Where the evidence went against the Christian case

Seventeen findings in this series cut against the side that wrote it.  They are printed here because a reader who cannot find them will be right not to trust anything else on the page.

Each is worked out, with its full sourcing, in the article that produced it.  Findings 1 to 3 belong to Where did the Quran come from? and Has the Quran been perfectly preserved?;  4 to Did Muhammad exist?;  5 to the origins article;  6, 15 and 16 to Does Muhammad's life look like a prophet's?;  7 to Which hadith count as canon?;  8 and 17 to Is the Bible corrupted?;  9 to Did Jesus die on the cross?;  10 and 11 to Does the Quran contain material taken from earlier books?;  and 12 to 14 to What do Islam's own sources teach about violence?.

1.  The Quran's consonantal text is early and stable, and the best evidence for it is recent and secular.  Van Putten's shared-spelling argument is stemmatic, published in a top journal, open access, and unrefuted.  His conclusion:  "The manuscripts examined in this study are sufficiently early that a codification of the Uthmanic text type is perfectly consistent with an attribution to its traditional source:  ʿUthmān b. ʿAffān."⁴⁶  Cost:  the late-composition thesis that popular Christian apologetics still uses is now arguing against the manuscript evidence.

2.  Michael Cook's stemma of the regional codices defeats the "the variants were invented" move.  The differences in the rasm — the bare consonantal skeleton — that al-Dani reports between the Medina, Damascus, Kufa and Basra exemplars form a clean family tree with no contamination, and medieval Muslim scholars had no concept of stemmatics.  Cook:  "this must count against any suggestion that the variants were invented. … We can accordingly infer that we have to do with genuine transmissions from an archetype."⁴⁷  Cost:  the variants are real transmissions, not later fabrications, and they reach behind the surviving manuscripts.

3.  Behnam Sadeghi, a secular academic, concludes the standard Uthmanic text is a better witness to Muhammad's recitation than the Companion codices are — a more conservative conclusion than the mainstream Muslim tradition itself reached.  Sanaa 1's variants are small:  same verses, nearly the same verse order inside surahs, same doctrines, mostly particles and synonyms.  Cost:  a Christian who says the Sanaa palimpsest shows a different Quran can be refuted from the published edition in five minutes.

4.  The external attestation of Muhammad is early, multilingual and hard to explain away.  Two years from the traditional death date to the Doctrina Iacobi, five to the name in Syriac, eight to a notice whose three independent calendars agree.  Add a calendar nobody can explain except by the hijra, and Sebeos' list of four legal prohibitions, every one Quranic, reported by an Armenian bishop who never saw a Quran.  Cost:  the Christian mythicist position on Muhammad is untenable, and one wing of Christian apologetics has to give it up.

5.  Crone and Cook disowned Hagarism, and it is still the most-quoted revisionist book in Christian apologetics.  Cook in 2021:  "I think we got an awful lot of it wrong."²⁹  Crone in her last book:  "There is no longer any good reason to doubt that ʿUthmān set up a commission that produced a Qurʾān."³⁰  Cost:  citing Hagarism without the retraction is misleading readers, and so is citing Christoph Luxenberg, whose thesis Crone — who had every reason to welcome it — called amateurish.

6.  The deliberate-fraud hypothesis fails, and it fails on the tradition's own records.  The Meccan decade with no gain, the estate that was a mule and a mortgaged coat of mail, the ban on his family receiving alms, the wounds at Uhud, and the rebuke verses that carry no payoff.³⁶  Cost:  an article that assumes conscious fraud is arguing badly and will lose the reader it wants.

7.  The hadith critics' method produced reproducible results, and the strongest defence of it is an argument this project already uses for the New Testament.  Harald Motzki's unforgeable-detail argument — transmitters who record their own ignorance, who distinguish "I heard from" from "on the authority of" consistently across a large corpus, who preserve rulings they disapprove of — is structurally identical to the Berean argument from the cloak Paul left at Troas.  Cost:  a Christian who runs that argument for Paul and refuses it for al-Zuhri has a double standard, and the series conventions forbid it.

8.  The Quran does not clearly say the Bible's text is corrupt.  Reynolds:  "neither here nor elsewhere … does the Qurʾān argue that the Bible of the Jews and Christians is falsified."⁴⁰  Martin Whittingham, who surveyed four centuries of Muslim writing on the Bible, dates the textual-corruption accusation as something that "lingers in the background, present but not dominant, until the 5th/11th century."⁴⁸  Cost:  the standard Christian opening move on tahrif — corruption of scripture — attacks a position the Quran does not clearly hold, and quoting Quran 5:47 at a Muslim is not the checkmate it is treated as.

9.  Quran 4:157 is grammatically open, and the people who say so are not apologists.  Shubbiha is an impersonal passive with no stated subject and appears nowhere else in the Quran.  Todd Lawson:  "The Qur'an only asserts that the Jews did not crucify Jesus;  which is obviously different from saying that Jesus was not crucified.  The point is that both John of Damascus and tafsīr, not the Qur'an, deny the crucifixion."³⁹  Cost:  an article treating the verse as a flat denial is arguing against the commentators and should say that is what it is doing.

10.  The Quran contains major narrative material with no traceable source.  Noah's son who drowns, at Quran 11:42–46, has no known Jewish or Christian antecedent.  And the showpiece "borrowings" critics cite most are the weakest:  Pirqe de-Rabbi Eliezer is eighth- or ninth-century and probably borrows from Islam.  Cost:  an anthology-of-borrowings thesis cannot accommodate the evidence.  The best-dated case, Quran 5:32, is a single verse, and the largest case — Dhul-Qarnayn against the Syriac Alexander Legend — turns on a date a 2023 monograph moved and that this series does not pretend to have settled.

11.  "Allah was a moon god" fails, and it is a Christian claim.  It rests on South Arabian moon-deity iconography from sites hundreds of miles and centuries away from Mecca.  The Quran itself says the Meccan pagans already acknowledged Allah as creator.  Cost:  one of the most widely circulated Christian claims about Islam is simply false.

12.  Conquest was fast and conversion was slow, and the gap is centuries.  Iraq and Khurasan became Muslim-majority only in the tenth century, Egypt around the fourteenth.  Cost:  "Islam spread by the sword," as a demographic claim, is refuted by the demography.

13.  Al-Tabari — the tradition's most authoritative early commentator — argued against the abrogation of the peaceful verses, in writing, in the ninth century, at Quran 2:190, 2:256, 8:61 and 60:8, calling the abrogation claim "arbitrary imposition."⁴⁴  Cost:  a Christian article that presents the sword-verse abrogation as the unanimous classical position is factually wrong.

14.  Quran 22:40 names monasteries, churches and synagogues among the things divinely sanctioned force exists to protect, and the first permission to fight is grounded in expulsion and being attacked first, not in unbelief.²⁴  Cost:  "the Quran contains no verses restraining warfare" is false on the page.  Two more costs belong here.  Deuteronomy 20:16-18 and 1 Samuel 15:3 are more severe than anything in the Quran — no surrender offered, infants named — so the defensible Christian argument is about scope and permanence, not severity.  And Mark Cohen, a Princeton historian who dismantles the interfaith-utopia myth in the same essay, finds anti-Jewish violence far less prevalent in the Islamic world than in Latin Christendom.

15.  The Christian tests of prophethood are circular across the boundary.  Deuteronomy 13, 1 John 4 and Galatians 1 are all doctrinal tests that disqualify a prophet who teaches what the biblical canon rules out — and Islam's answer is that the canon was altered.  To a Muslim, running Deuteronomy 13 against Muhammad is like running the Quran against Jesus.  Cost:  the tests that feel decisive to a Christian settle nothing across the boundary, and the series had to build a test that presupposes neither scripture.

16.  Christianity fails one criterion in the same place Islam does.  The earliest non-Christian mentions of Jesus attest the movement and the execution, not the wonders.  Cost:  a Christian who leans on independent attestation of miracles against the splitting of the moon has to say what he does with the empty tomb.

17.  The New Testament's variant count is higher than Bart Ehrman's number, not lower.  Peter Gurry's collation-based estimate is about 500,000 non-spelling variants, above Ehrman's "400,000 or more."  Gurry's own gloss is the right frame:  the number "reflects the frequency with which scribes copied more than their infidelity in doing so."⁴⁹  Cost:  the Christian answer has to be the ratio and the recoverability, not a smaller number.

Where the evidence went against the Muslim case

The same discipline applied in the other direction.  Seventeen findings, with the same specificity.

Findings 1 to 9 are worked out in Has the Quran been perfectly preserved?;  10 in Does the Quran contain scientific miracles?;  11 in Does the Quran contain material taken from earlier books?;  12 in Does the Quran describe Christianity accurately?;  13 and 14 in What do Islam's own sources teach about violence?;  15 in Which hadith count as canon?;  16 in Did Jesus die on the cross? and Is the Bible corrupted?;  and 17 in Does Muhammad's life look like a prophet's?.

1.  "Not one letter has changed" is refuted from Sahih al-Bukhari and Sahih Muslim before any manuscript, any orientalist or any Christian is consulted.  Umar on the stoning verse.  Aisha on the nursing ruling, and on a sheet under her bed that a domestic animal ate.  Abu Musa on two surahs no longer recited.  Umar on leaving some of what Ubayy recites, with Quran 2:106 cited as the justification.  The tradition's own answer, naskh al-tilawa, is coherent theology that concedes the Quran recited today is not identical to the Quran recited in 632, relocating the loss from human error to divine intention.

2.  A non-Uthmanic Quran physically exists.  It was erased and written over.  Its surah order is different and its wording differs in hundreds of places, including in a legal list at Quran 2:196.  Sadeghi and Goudarzi:  Sanaa 1 "constitutes direct documentary evidence for the reality of the non-'Uthmānic text types that are usually referred to as 'Companion codices.'"⁵⁰

3.  Medieval Muslim scholars knew the consonantal skeleton varied and said so.  Hythem Sidky:  "as early as we can peer into the Islamic past, we find widespread recognition of orthographic variation among muṣḥafs."⁵¹  Ibn Abi Dawud's Kitab al-Masahif has a chapter cataloguing the differences between provincial codices, and Ibn al-Jazari's own criterion for a valid reading is agreement with one of the codices — which presupposes that they differ.

4.  The variant readings do affect meaning.  Quran 5:38 reads "their hands" in the standard text and "their right hands" in Ibn Mas'ud's, which decides how a criminal penalty is carried out.  At Quran 33:6 al-Qurtubi records Ubayy's codex adding four words — "and he is a father to them" — bearing directly on Quran 33:40.⁵²  Quran 2:106 has readings meaning "cause to be forgotten," "defer," and a stray "you forget" that implies the Prophet might fail to remember a revelation.

5.  The vocalisation is not preserved, and some canonical readings look like a bare skeleton being interpreted rather than a memory being recited.  Van Putten's judgement on dotting-only differences:  "the readers were confronted with an ambiguous rasm and interpreted it in two ways that both made semantic sense."  That is the direct challenge to the claim of an unbroken independent oral transmission, which is the load-bearing beam of the Muslim account of how preservation worked.

6.  Sanaa 1 also undercuts the collection narrative.  It shows the surahs were already assembled before Uthman, which disproves the reports implying they were assembled from scattered pieces under him.

7.  The 1924 Cairo edition is an editorial product of a 1924 committee, which chose between al-Dani and Abu Dawud b. Najah wherever they conflicted, and whose own colophon gives a pedagogical reason for the project:  imported school Qurans had contained errors and had had to be destroyed.³³

8.  The "two transmitters per reader" canon is a fifth-century pedagogical convenience.  Ibn Mujahid himself reports no fewer than 49 immediate transmitters for his seven readers.  The reduction to exactly two was introduced by Abu al-Tayyib b. Ghalbun (d. 389/998).  The number fourteen, and the twenty that follows it, is a tenth-to-twelfth-century tidying, not a first-century fact.

9.  The criterion that excludes non-canonical readings is conformity, not antiquity.  Ubayy's reading at Quran 33:6 is shadhdh, irregular, because it fails agreement with the Uthmanic skeleton, not because anyone showed it was late.  The system works exactly as designed, and what it is designed to do is enforce a standard rather than recover an original.

10.  The classical exegetes did not read the science-miracle verses the way modern apologists do, and in several cases read them the opposite way.  Al-Tabari, al-Jalalayn, Ibn Kathir and The Study Quran all take musi'un at Quran 51:47 as "possessed of ample power."  Al-Jalalayn says the plain sense of Quran 88:20 is a flat earth, and that most scholars of the Law held it.  On the falsification test — would any pre-modern commentator have predicted the modern finding? — every showcase case is a retrofit.

11.  Quran 5:32 is the strongest-attested borrowing in the corpus, and the wording gives the game away.  Mishnah Sanhedrin 4:5 was redacted four hundred years earlier;  the Quran names Israel as the recipient, keeps the Cain-and-Abel context, and keeps the Mishnah's own connective.³¹

12.  "The Jews say Ezra is the son of God" (Quran 9:30) is unattested.  No Jewish text says it, and none has been produced in fourteen centuries.  The strongest Muslim response — that the verse addresses a specific local group — is a good one and should be granted its force.  A second response is stronger still, and it comes from Gabriel Said Reynolds, who is defending nobody:  uzayr may not be Ezra at all, but a garbled form of the fallen angel Azazel, whom some Jews of the period did treat as a heavenly power.  He calls it speculation.  It is enough to stop this being a closed case.  The residue is that a scripture making a doctrinal accusation against a whole community, unsupported by any surviving text of that community, is making a claim it cannot document.  The parallel accusation against Christians in the same verse is documentable, and the asymmetry is the point.

13.  Muhammad led twenty-seven expeditions in person and fought in nine, on al-Waqidi's own summary, and Tabuk was a march on Byzantine territory from which nobody had attacked Medina.⁴⁵  And the Banu Qurayza executions are inside the sound material — the arbitration is in Sahih al-Bukhari 4121 and Sahih Muslim 1769, not only in the sira.⁵³  Numbers are disputable;  the episode is not.

14.  Abrogation is not a fringe doctrine.  Louay Fatoohi, a Muslim writer who rejects abrogation, concedes that "The overwhelming majority of Muslim scholars, past and modern, have accepted abrogation … as an indisputable fact.  Only a very small minority has rejected Qur'anic abrogation."⁵⁴  And jizya carried humiliation in the classical reading:  al-Tabari glosses wa-hum saghirun at Quran 9:29 as "while they are abased and subdued."⁴⁴

15.  Al-Kafi, the first of the Shia Four Books, is about 62% weak by Shia scholars' own grading — 9,484 of roughly 15,181 traditions graded da'if, weak.  I. K. A. Howard's caution goes with the number:  "The fact that a tradition is considered weak does not mean that it is not true."⁵⁵

16.  The historical evidence that Jesus was crucified is not seriously contested by non-Christian historians, and manuscripts of the Old and New Testaments that predate Muhammad exist in quantity.  No manuscript of any canonical Gospel, in any language, at any date, omits the crucifixion or reports a substitute.  Meanwhile the classical tradition could not agree what happened instead:  a volunteering unnamed disciple, a disciple named Sergius, Judas, a Jewish guard, all seventeen disciples at once, and a Roman-sounding assassin called Tityanus.  These are not variants of one memory.  And Muhammad Abu Laylah's four objections to the lost-Injil theory are a Muslim's objections to a Muslim theory:  if a sound Injil endured to Muhammad's day, why does no early Muslim mention it in a book, why was it not preserved by Muslims, would Muhammad not have safeguarded it, and would he have let the four Gospels eclipse it?⁴⁸

17.  The Aisha marital-age report is sahih and multiply attested, which is a real dialectical point — a Muslim who defends the hadith corpus cannot simply discard it.  But the best modern academic work, Joshua Little's 2023 Oxford doctoral study, concludes the report cannot be traced back beyond a mid-eighth-century Kufan setting.⁵⁶  What survives either way is the legal afterlife:  al-Bukhari's own chapter headings turn the report into a precedent.  This is the episode most likely to backfire on a Christian who leads with it.

How this series was built

The method is stated so the work can be checked rather than trusted.

Primary sources first.  The Quran in Arabic with the translation named;  then dated documentary evidence — inscriptions, coins, papyri, manuscripts — and its published edition;  then early Muslim literary sources with their date and transmission chain stated;  then classical tafsir and the classical hadith sciences;  then current university-press and peer-reviewed scholarship;  then serious apologetics on both sides, named as such and never as neutral scholarship.  Aggregator sites are used only as maps to the sources they cite, never as authorities for a fact a primary source can supply.

The double-standard rule.  Almost everything anyone knows about Muhammad's life comes from one pool — the hadith collections and the sira — whose reliability is exactly what is in dispute.  No article in this series may use that pool as decisive evidence against Muhammad in one paragraph and dismiss it as unreliable in the next.  If a report is good enough to convict, it is good enough to acquit.  Each report's source-critical status is stated before it is used:  which collection, how early, what chain, who graded it.

Name the grader, every time.  The grades printed on sunnah.com for Sunan Abu Dawud, Jami' at-Tirmidhi, Sunan an-Nasa'i and Sunan Ibn Majah are largely Muhammad Nasir al-Din al-Albani's twentieth-century judgements, not medieval ones.  Al-Bukhari and Muslim carry no grade line, because inclusion is itself the claim.  Writing "graded sahih" without saying by whom is treated as a defect.

State the Muslim case at full strength first.  Every article carries a section labelled as the strongest case for the Muslim claim, written before any evaluation, and a section answering the best serious Muslim scholarship.  Every article also ends its summary with a bullet stating where its own case is weakest.

Verify the wording and the locator.  No quotation, page number, date or numeral in this series may be established through a summarising fetcher, because such a tool answers through a small model that can paraphrase without signalling.  Bytes are downloaded and read.  An adversarial verification pass then re-checked the highest-risk quotations in the thirteen articles against live bytes.  Across the eleven files finished when this page was written it recorded 477 checked items, of which 84 were corrections and 393 held — the corrections including a misquotation of John Wansbrough where "can" had become "may," three separate errors in a radiocarbon table, and a Déroche quotation that had been taken through Stephen Shoemaker instead of from Déroche.  One item was removed outright as unverifiable, with its wording preserved in the record.  A quotation that cannot be verified is moved to the article's quarantine.md with what was tried.  It is never deleted and never printed.

Every article was then attacked.  A separate adversarial pass re-fetched the highest-risk quotations in each article against live bytes — the famous quotations that circulate in corrupted form, the page numbers, the calibrated radiocarbon ranges, and every hadith reference — and checked three things separately for each:  that the wording is verbatim, that the locator is right, and that the source cited is where the material actually comes from rather than a secondary work quoting it.  Across the fourteen reports that pass verified 541 items and corrected 144, and the corrections were substantive:  a misquotation of Wansbrough, three errors in the Sanaa radiocarbon table, a Deroche quotation cited through Shoemaker instead of from Deroche, hadith gradings credited to a modern editor when the page carries al-Tirmidhi's own, and a retired claim that had crept back into this hub twice.  A further nineteen quotations that could not be verified were quarantined rather than printed.  Each article's verification.md records what was checked, by what route, and what changed, so the count above can be recounted rather than believed.

The research is on disk.  Twenty-one shared dossiers, running to about 14,100 lines, sit at html/unpublished-ai/islam/research/, beside the conventions file that governs all thirteen articles.  They carry the source inventory, the contradictions between dossiers and how each was resolved, the list of what could not be reached and what was tried, and the per-article source map.  Each article also carries its own literature-review.md, quotes.md, and where needed a quarantine.md and a verification.md recording the item-by-item re-check.

Retired claims

Every dossier in this series was asked to flag claims that must not appear in any article.  This is the merged list, and it is printed in full because it is the clearest signal that this is not propaganda.  "Retired" means the claim may not appear as an assertion.  Several of these still appear inside the articles as claims other people make, answered — that is a different thing.

Claims Christians should stop making

• "Muhammad may never have existed." Nobody in the field holds it, including Crone.
• "The Quran was written 200 years after Muhammad" / "Wansbrough proved it." Radiocarbon and the archetype argument settled it against him.
• "The Sanaa palimpsest contains a completely different Quran." Same verses, nearly the same order, no doctrine changed.
• "The Sanaa palimpsest is carbon-dated to 543–643 and 433–599." Two Lyon measurements out of eight; a third returned 388–535. Give the whole table or none of it.
• "There is a fifty-year gap between the two layers of the Sanaa palimpsest." Nothing measures this.
• "The Birmingham manuscript is older than Muhammad." The range covers his whole career, and radiocarbon dates the parchment.
• "Radiocarbon proves the Quran is from Muhammad's lifetime." It dates an animal.
• "Radiocarbon is worthless." The mirror error. The measurements do cluster in the seventh century.
• "Brubaker documented thousands of textual changes." He documented corrections, mostly scribal slips being fixed.
• "There are 2,270 variants in the Topkapı manuscript." They are spellings, reported by Altıkulaç himself, and the figure could not be verified in his own text.
• "Uthman went from city to city burning Qurans." He sent copies out from Medina and ordered the rest burnt. There was no tour.
• "Uthman burned the variants, so we cannot know the original." Half true. Ibn Mas'ud's recension survived into the late seventh century, and Sanaa 1 is a physical survivor.
• "Christians make a footnote where Muslims make a bonfire." Half true and gratuitously insulting. Muslim scholarship on variant readings is a large written literature.
• "Luxenberg showed the Quran is a misread Syriac lectionary," including the 72 white raisins. Crone, who had every reason to welcome it, called it amateurish.
• Lüling's Christian-hymnal thesis, and the Ohlig/Popp/Inarah reconstruction. Both failed review; describe as minority positions if at all.
• Crone and Cook's Hagarism thesis. Both authors disowned it.
• Dan Gibson's Petra-qibla thesis as settled. It is not a position in the field.
• "There is no archaeology for Mecca, therefore Mecca did not exist." Crone's actual claim is narrower and should be quoted instead.
• "The isnad system is worthless" / "Schacht proved all hadith are forged." Motzki rolled Schacht's strongest claims back using Schacht's own methods.
• The "600,000 → 7,275, so 98.8% was thrown away" framing. Two numbers from different sources counting different things.
• "Muhammad admitted he did no miracles." He did not. The surviving argument is about the chronology of the miracle reports.
• "No miracles, therefore no prophet," full stop. Isaiah, Jeremiah, Amos, Micah and Malachi worked no recorded miracle.
• Loose talk about the Satanic Verses as established history. It is in al-Tabari and Ibn Sa'd, not Bukhari or Muslim, and Burton supplied a motive for its invention.
• The Bukhari 4302 age-counting rebuttal. It is a report about a different boy in a different tribe.
• "There are 20+ (or 243) grammatical errors in the Quran." Untraced. The three examples with a real pedigree were answered by the classical grammarians.
• "The Quran contains scientific errors that prove it is not divine." Concordism in reverse, and the Berean Archive rejects concordist readings of Genesis.
• "Islam spread by the sword," unqualified, as a demographic claim. The four largest Muslim populations are in regions no Arab army conquered.
• "The classical tradition unanimously held that Quran 9:5 abrogated the peaceful verses." Al-Tabari argued against it in the ninth century, in print.
• "The Quran contains no verses restraining warfare." Quran 2:190, 2:192, 4:90, 8:61, 9:4, 9:6, 9:7, 22:40 and 60:8 are all there.
• Quoting Quran 9:5 without 9:4, 9:6 and 9:7, or 4:89 without 4:90–91. Both elisions destroy credibility on contact.
• Presenting Quran 8:12 as a command to Muslims. It addresses angels.
• "The 'greater jihad' hadith is a modern Sufi fabrication." It has chains going back centuries. Say "no hadith critic has graded it sound," which is true and enough.
• "450 of 452" used to say anything about Islam or about Muslims rather than about named organisations in one year.
• "Allah is a different God" / "Allah was a moon god." Allah is the ordinary Arabic word for God, used by Arabic-speaking Christians before Islam.
• "Taqiyya means Muslims are permitted to lie to you." It is precautionary concealment under threat, and al-Tabari and Ibn Kathir say so on Quran 3:28; the conspiracy version is a Sunni anti-Shia polemic Christians have borrowed, and even its strongest Christian statement, Raymond Ibrahim's 2010 essay, documents only the fear-conditioned doctrine.
• "Muslims worship Muhammad," and the word "Mohammedans." Islam's cardinal sin is shirk, and Quran 18:110 has Muhammad say "I am only a man like you."
• "Islam has no concept of grace." False on the sources. The accurate and stronger claim is mercy without atonement.
• "The Quran denies Jesus's virgin birth and miracles." It affirms both. It denies his deity, sonship and crucifixion.
• "All Muslims believe X," and "Muslims are Arabs." Support for sharia as state law runs from 8% to 99% by country; about one in five Muslims lives in an Arab League state.
• "Deuteronomy 18 can only mean Jesus." Rashi, Ibn Ezra and Nachmanides all read it institutionally.
• "No one before Islam ever read Paran as Arabia or connected it with Ishmael." False three times over. The defensible claim is that no ancient source places Paran at Mecca.
• "'Brothers' in Deuteronomy always means Israelites." Deuteronomy 2:4, 2:8 and 23:8 call Edomites "your brothers."
• "Ahmad is not a name, so Quran 61:6 refutes itself." Sahih al-Bukhari 3532 has Muhammad list Ahmad among his own names.
• "No serious scholar has ever doubted the Paraclete is the Holy Spirit." The identification is secure from John 14:26; the history of the figure is a live Johannine question.
• "Muhammad worked no miracles, so he fails Deuteronomy 34:11." The hadith and sira report many. The defensible form is a tension inside the Islamic sources.
• "Islam has always said the sacrificed son was Ishmael." Al-Tabari says Isaac, and Firestone counts more early traditionists for Isaac.
• Mara bar Serapion and the Talmud as evidence for the crucifixion. Padding the list invites a fair reader to discount all of it.
• "The Gospel of Barnabas proves the Gnostic substitution story reached Arabia." A parallel is not a genealogy.
• "The Quran flatly denies the crucifixion, so it contradicts history." That is a claim about tafsir, and Lawson and Reynolds both say so.
• "The Quran says the Bible's text is corrupt, and also tells Christians to judge by it, so it contradicts itself." The Quran does not clearly say the text is corrupt.
• Any secondhand quotation of Bulliet, Hoyland, Donner, Sizgorich, Nickel, Sadeghi, Brubaker, Slomp, Pape, de Blois or Neuwirth until the source is opened — and likewise Ibn Hajar's Hady al-sari, al-Suyuti's al-Itqan, Shah Wali Allah's al-Fawz al-Kabir, and Ibn Salama.
• The Margoliouth line "In order to gain his ends he recoiled from no expedient…" Not found in the 1905 first edition. Quarantined, not deleted.
• Jay Smith and the Pfander Centre as a source. Cite the Wood–Smith debate as an event, not Smith as an authority.
• The deliberate-fraud hypothesis as a working assumption. It fails on the Meccan decade, the estate, the alms ban, the wounds at Uhud, and the rebuke verses.

Claims Muslims should stop making

• "The Quran has been preserved perfectly, letter for letter." Refuted from Bukhari and Muslim before any manuscript is consulted. The defensible claim is the archetype claim, and it is a good one.
• "There is only one Quran; all Muslims everywhere read the same text." Seven canonical readings, later ten, each with two transmissions. Warsh is still printed across the Maghrib.
• "There is only one Quran, so it is more reliable." Uniformity produced by destroying non-conforming copies removes the means of checking.
• "The variant readings are only about pronunciation and never affect meaning." Quran 2:10, 2:106, 3:3, 5:38 and 33:6 are counterexamples, and 5:38 decides a criminal penalty.
• "Uthman only standardised the dialect; he changed nothing." The tradition itself records him attacked as harraq al-masahif, "burner of the codices."
• "The Uthmanic codices were collated against Hafsa's sheets, so the process was rigorous." Déroche argues from the manuscripts that this is retrojection.
• "The unbroken mass-transmitted (mutawatir) oral tradition guarantees the recitation." The canonical readers were substantially reading off the written skeleton, and the two-transmitter canon is a fifth-century convenience.
• "Diacritics and vowel marks were there from the start." The earliest manuscripts leave the consonantal skeleton ambiguous; vowel signs come later still.
• "Al-Zuhri's account of the collection is an eyewitness chain." Motzki's own result traces it to al-Zuhri, not to eyewitnesses.
• "The sira and hadith give us a reliable, detailed life of Muhammad." The earliest reconstructable accounts date from no earlier than sixty years after the death, and are not eyewitness reports.
• "Western scholars have confirmed the traditional account." The field grants an Uthmanic standardisation, a single written archetype, an early Quran, and Muhammad's existence. It does not grant perfect preservation, the collection narrative in detail, the reliability of the sira, or unbroken oral transmission of the vocalised text.
• "The Quran contains no foreign words / is pure Arabic." Jeffery's Foreign Vocabulary is still standard, and the debate was live among Muslim savants themselves.
• "The Quran's inimitability proves its divine origin." No stated criterion, in-house judges, and Quran 17:88 makes the claim unfalsifiable by construction.
• The scientific-miracle claims individually. Retired outright: the expanding universe at Quran 51:47, iron "sent down" at 57:25, mountains as pegs at 78:6–7, the Big Bang at 21:30, and the "19 code" at 74:30. Weak but not empty: embryology at 23:12–14, the barrier between two seas, fingerprints at 75:3–4.
• "The Quran predicted the Byzantine victory." The unpointed skeleton supports both outcomes, and the same scholarship that defends the standard reading dates the passage after 628.
• "Quran 48:27 predicted the conquest of Mecca." It was revealed after the Hudaybiyya retreat, with "if God wills" built in.
• "Quran 15:9 proves the Quran has been preserved." Circular. The verse specifies no mechanism, scope or terminus, and is compatible with naskh al-tilawa.
• "Muhammad was illiterate, so he could not have composed the Quran." Ummi most likely means "of the scriptureless nation," and in an oral culture the claim would prove only that he did not copy a manuscript.
• "Muhammad performed the miracles in Bukhari, so the Quran's sign-deflections are answered." The chronological gap between the Quran and the later miracle literature is the point.
• "Some Greek manuscripts read periklytos." None do. Zero, in every witness that has been transcribed.
• "Muhammad is in Deuteronomy 18:18." Verse 15 says "from your midst," mi-qirbekha.
• "Muhammad is in Song of Songs 5:16." Machamaddim is a common noun standing in parallel to mamtaqqim in the same clause.
• "Muhammad is in Habakkuk 3:3 / Deuteronomy 33:2." In both the subject is God. Paran is the Sinai wilderness; Teman is Edom.
• "Muhammad is in Isaiah 42." The servant "will not make his voice heard in the street," and Kedar appears in a list of places summoned to praise God.
• "The Gospel of Barnabas is the true gospel." Its Jubilee recurs every hundred years, a custom that existed only between 1300 and 1350, and it makes Muhammad the Messiah, contradicting Quran 3:45.
• "The Bible was corrupted." The Quran's tahrif language is about tongues, concealment and misapplication, and the manuscripts that matter are all pre-Islamic.
• "The prophecies of Muhammad were removed from the Bible." A proposition that predicts the same observation whatever the world is like is not doing work.
• "Jihad means only inner struggle." Qital, armed fighting, is what Quran 2:216 makes obligatory, and the classical fiqh chapters titled kitab al-jihad are about war.
• The "greater jihad" hadith as a saying of the Prophet. Ten graders across eight centuries, including al-Suyuti and Ibn Rajab, call it weak or worse.
• "Naskh — abrogation — is a fringe doctrine." Fatoohi, who rejects abrogation, says the overwhelming majority of Muslim scholars accepted it as indisputable fact.
• "'No compulsion in religion' is an unrestricted principle of the classical tradition." Al-Tabari, defending Quran 2:256, restricted it and excluded Arab pagans and apostates by name.
• "Jizya was a light tax with no humiliation attached." Al-Tabari glosses wa-hum saghirun as "while they are abased and subdued."
• "The killing of the Banu Qurayza men is a late invention." The arbitration is in Sahih al-Bukhari 4121 and Sahih Muslim 1769.
• "Muhammad never fought except when attacked." Twenty-seven expeditions, nine battles, and Tabuk.
• Citing Pape to prove religion plays no role in suicide terrorism. Ashworth and colleagues showed his design cannot support any conclusion about religion in either direction.
• "Quran 5:47 settles it — Muslims must accept the Gospel Christians have." Whittingham lists five different Muslim answers to that verse, none of which is that.
• "The Quran never says Jesus died." It denies that they killed him. Quran 3:55 and 5:117 use tawaffa, the ordinary verb for God taking a life.
• The Ahmadiyya swoon reading, presented as a Muslim option. It concedes the crucifixion as an event, and mainstream Islam rejects it as heresy.

What would change these conclusions

Each article states its own falsifiers.  For the series as a whole, five things would move the verdict.

A pre-Uthmanic documentary find would move the dating debate.  A dated Quranic manuscript, an inscription quoting a long passage, or a securely dated papyrus from before about 650 would tighten what is now a fifty-year window.  A find running the other way — a securely dated eighth-century archetype — would reopen a question the manuscripts currently close.

A checkable prediction would change the case for prophethood.  What is missing from the Quran is not eloquence but scoreable content:  a public, dated, specific prediction with a low prior, said in advance and judged over the whole corpus rather than over curated hits.  One clear instance would be worth more than the entire inimitability literature.

A criterion for inimitability would make it testable.  If a Muslim scholar stated in advance what a successful rival surah would look like and named judges who were not required to be Muslims, the challenge would become an argument rather than a description.  Until then it cannot be won or lost.

Evidence that a distinct Injil existed would rescue the strongest Muslim position.  A citation in an early Muslim author, a manuscript, a quotation in a hostile source — anything that shows a book given to Jesus circulating before the four Gospels.  Muhammad Abu Laylah's four objections are the shape of what has to be answered.

On the Christian side, the crucifixion is the load-bearing fact.  If the first-century evidence for it were shown to be late, dependent or fabricated, the sharpest collision between the two faiths would dissolve — the collision being between that evidence and the way the Islamic tradition has read Quran 4:157, since what the verse itself denies is disputed by Todd Lawson and Gabriel Said Reynolds, neither of them an apologist.  Nothing in current scholarship points that way, and the scholars who reject the resurrection say so most emphatically of all.

Sources

This page is a front door, so most of its evidence is carried by the thirteen articles it links to, where every source was opened and read.  The Quran and hadith quotations printed here were re-fetched and read from the raw JSON and markup on August 22, 2026 — from api.quran.com and sunnah.com — rather than taken from the articles.  Most footnotes below that cite a book or journal reproduce the citation established in the linked article, where the source itself was opened, and each names the article's evidence and its locator so a reader can go to the same page.  The Pew reports and Rosen's 1831 edition of al-Khwarizmi are used only here, and were read directly from the copies in the project library, with the page numbers taken from each document's own printed folios.