52 – Jaʿfar b. Aḥmad b. Ayyūb, al-Samarqandī, Abū Saʿīd. He is called: the son of the decrepit (ibn al-ʿājiz). He has a book: Refutation against whoever claims that the Prophet صلى الله عليه وآله was upon the religion of his people prior to prophethood.