Medieval polemicists used Muslim sources to validate anti-Muslim legends

Evidence

San Pedro had some doubts about the Maurus legend but felt sure that episodes told by ibn Ishaq (the delay in revelation over the Seven Sleepers of Ephesus and the accusation by the Quraysh that Muhammad had a foreign teacher) implied the substantial truth of the main point of it. — Norman Daniel, Islam and the West, 2044

Categorization

• XREF: connects to: An established anti-Islamic literature existed in the West by 1350; Medieval polemicists recycled general accusations of Muslim vice without personal knowledge; Medieval critics saw Islamic truths as deliberate bait for deception (+6 more)