The Cambridge Medieval History - Book VII: The Prophet Mohammed and the Islamic Conquest

OUR knowledge of Mahomet, his life and his teaching, is derived entirely from documents which have been handed down by Muslims; no contemporary non-Muslim account is extant, and the testimony of later non-Muslim writers has as little claim to consideration as the statements in the Talmud concerning Christ. Among our authorities the Koran, for obvious reasons, occupies the foremost place. The pieces of which it is composed are acknowledged, alike by those who assert and by those who deny its...