Muhammad ibn Ishaq
أبو بكر محمد بن إسحاق بن جعفر
Fourth generation, died 270 AH in Saghan. Named in the chains of 37 narrations of the library, 22 in Muslim, 1 in Abu Dawud, 2 in Tirmidhi.
37narrations name him
5collections
270 AHhe died, in Saghan
In the books of narrators: Trustworthy and exact, ثقة ثبت.