Yaqub ibn Ibrahim
أبو يوسف . يعقوب بن إبراهيم بن كثير
Fourth generation, died 252 AH in Baghdad. Named in the chains of 156 narrations of the library, 30 in Bukhari, 26 in Muslim, 7 in Abu Dawud.
156narrations name him
8collections
252 AHhe died, in Baghdad
In the books of narrators: Trustworthy, ثقة ..
Narrations he is named in
Ash-Shama'il