Medieval Christian writers identified Muhammad’s alleged mentor Bahira with the evil monk Sergius

Evidence

Although San Pedro rendered the story with so little admixture of Christian elements, he went on to speculate whether Bahira might not prove in fact to have been the same as the monk whom the books of the Christians reported as Muhammad’s evil influence, i.e. Sergius, or, in San Pedro’s account, ‘Maurus’. — Norman Daniel, Islam and the West, 514

Categorization

• XREF: Connects to medieval Christian polemic about Islam — the Bahira/Sergius identification is a recurrent motif in anti-Islamic Christian literature.