Z.Karabell, People of the Book: The Forgotten History of Islam and the West (London, 2007), 15–16; Haleem (tr. and ed.), The Qur’an, 16 [2.142]. Подробнее об этих событиях см. в: P.Crone and M.Cook, Hagarism: The Making of the Islamic World (Cambridge, 1977), 3–34.