Medieval Christian scholars doubted the Qur’an faithfully recorded Muhammad’s revelations.

Evidence

It is also impossible to be sure exactly what relation the Qur’an was thought to be supposed to bear to the actual revelations brought by the angel. The actual writing down of the Qur’an and the preparation of the existing text were known to have been quite distinct from the originals they record. Pedro de Alfonso said that the Qur’an was not written by the hand of the Prophet, but that his companions composed it after his death, each one surrendering his own individual reading to form the combined whole. — Norman Daniel, Islam and the West, 210

Categorization

• XREF: Connects to debates about scriptural compilation and textual transmission across traditions, and to orientalist critique of the Qur’an’s composition.
• QUESTION: Worth chasing how early Muslim scholarship itself acknowledged the compilation process versus later orthodox positions.