Muslims held that Jews and Christians corrupted their scriptures

Evidence

But he also wrote the lengthy and rancorous Kitab al-Fisal fi-al-Milal wa-al-Ahwa’ wa-al-Nihal, or ‘Book of Distinction in the Religions, Heresies, Sects’, in which he sought to demonstrate the superiority of Sunni Islam to all other faiths and sects. … According to Ibn Hazm, Christians had tampered with the New Testament and removed prophecies concerning the coming of Muhammad. They corrupted the Gospels with lies. ‘All this shows the Christian community is altogether vile.’ — Robert Irwin, For Lust of Knowing, 80 (#expands, via linked claim)

Categorization

• XREF: connects to: Muslim polemicists accused Christians of corrupting scripture and polytheism — Robert Irwin, For Lust of Knowing: The Orientalists…, 80; Muslim polemic accused Jews and Christians of falsifying scripture to erase prophecies of Muhammad; Anti-Jewish proof texts were recycled wholesale into Christian missions to Muslims (+15 more)

Related

• Muslim polemicists accused Christians of corrupting scripture and polytheism (similarity 0.92)
• Polemics could condemn a rival religion using only its own scriptures (similarity 0.88)
• Each religion saw the other as a corruption of its own truth. (similarity 0.85)
• Muslims rejected the Trinity as polytheism and carnal generation (similarity 0.84)
• Medieval Christians weaponized accurate Islamic learning for polemics (similarity 0.83)
• Medieval authors mislabelled Islamic Christian and Jewish influences as heretical sects (similarity 0.83)
• Islamic doctrine of tahrif holds Jews and Christians corrupt scripture (similarity 0.83)
• Protestant-Catholic-Islamic parallels in polemic relied on incredibly thin points (similarity 0.82)
• Both Christians and Muslims understood the other as a corruption of their own truth (similarity 0.81)
• Medieval Christian polemic framed Islam alongside heresy and Judaism (similarity 0.81)
• Polemical borrowing across Latin texts propagated deliberate misrepresentation of Islam (similarity 0.81)
• Theological explanations blamed Christian corruption and cast Muslims as God’s punishing instrument (similarity 0.81)
• Medieval polemicists used Jewish and Islamic scriptures to refute each other reciprocally (similarity 0.80)
• Medieval polemicists read Ismael’s biblical disinheritance as prophecy of Islam’s enmity. (similarity 0.80)
• The Koran presents Judaism as a corrupted version of the true Abrahamic religion. (similarity 0.80)

Broader Connections

• Muslim polemicists accused Christians of corrupting scripture and polytheism #expands (0.95) — Robert Irwin, For Lust of Knowing, 80
• Jews were repudiated as internal to Christendom while Muslims were repudiated from outside #epitomizes (0.95)
• Medieval Christian texts distinguished Jews from Muslims rather than equating them #complicates (0.95)
• Theological explanations blamed Christian corruption and cast Muslims as God’s punishing instrument #complicates (0.95)
• Anti-Jewish proof texts were recycled wholesale into Christian missions to Muslims #contradicts (0.90)
• Early Islamic scripture mandated toleration of Jews and Christians’ religious choice. #corroborates (0.90) — John V. Tolan, Saracens, 255
• A Qur’anic verse was distorted into an incitement to fight non-Muslims #corroborates (0.90) — Asena Karipek, Portrayals of Jihad, 46
• Muslim polemic accused Jews and Christians of falsifying scripture to erase prophecies of Muhammad #qualifies (0.85)
• Medieval polemicists used Jewish and Islamic scriptures to refute each other reciprocally #complicates (0.85) — Norman Daniel, Islam and the West, 311
• Christianity required convincing Jews of its truth, Islam did not #corroborates (0.85) — Bernard Lewis, From Babel to Dragomans, 324
• Christianity incorporated the Hebrew Bible while Islam supplanted both Jewish and Christian scripture #complicates (0.80)
• Medieval Christian texts deemed Muslims convertible but Jews a fixed physical threat #complicates (0.80) — Ivan Davidson Kalmar, Derek Penslar, Orientalism and the Jews, 297
• Medieval polemicists framed Islam as a pragmatic corruption of prior scriptures #complicates (0.80)
• Muslims were given the legal status of Jews rather than slaughtered like heretics #corroborates (0.80)
• Christians inherit Jewish scripture, Muslims replaced rather than adopted it #corroborates (0.70) — Bernard Lewis, From Babel to Dragomans, 1643