d. 303 AH, 915 CE
Born in 214 or 215 AH in Nasa, Khurasan.
Studied Hadith in Balkh from age 15 and traveled widely for knowledge.
Settled in Egypt but later moved to Damascus, where he found people with incorrect views about Hazrat Ali.
Compiled a book on the merits of Hazrat Ali to educate people.
Recognized as the leading traditionist of his time.