Abu al-Hasan bin al-Qattan al-Fasi: Unknown
Abu Hatim al-Razi: Unknown
Abu Hatim bin Hibban al-Busti: He mentioned him in "The Trustworthy" and said: It was said: Muhammad bin Masrur makes mistakes
Abu Sa'id bin Yunus al-Masri: He studied jurisprudence under Abu Hanifa and al-Thawri, and was appointed Judge of Egypt by al-Rashid. Abdullah bin Wahb, Ishaq bin al-Furat, and Sa'id bin Abi Maryam narrated from him. He was dismissed from judgeship in 185 AH.
Al-Dhahabi: I don't know him
Abd al-Haqq bin Abd al-Rahman al-Ishbili: He weakened him
Yahya bin Abdullah bin Bakir: There was nothing wrong with his judgments