Abu Bakr al-Barqani: He is not one of the conditions of the Sahih
Abu Khazim al-Qadi: I have not seen among the people of Baghdad anyone more intelligent than Isa ibn Aban and Bishr ibn al-Walid
Abu Dawud al-Sijistani: He was not trustworthy
Ahmad ibn Hanbal: He praised him
Ahmad ibn Ali al-Sulaymani: Denier of Hadith
Al-Khatib al-Baghdadi: He had a beautiful doctrine and good manners
Al-Daraqutni: Trustworthy
Rabiah ibn Thabit al-Ruqqi: He recited poetry praising him
Salih ibn Muhammad Juzayrah: Truthful, except that he is one of the people of opinion, and once: Truthful, but he does not understand what he narrates because he was senile
Talhah ibn Muhammad al-Shahid: He was one of the flags of the Muslims and was a religious scholar, harsh in the matter of judgment, and broad in jurisprudence
Ubayd Allah ibn Sa'id al-Sarkhasi: From the people of whims, from the people of opinion and the Rafidah
Muhammad ibn Sa'd Katib al-Waqidi: When he grew old and spoke with pauses, the hadith scholars abandoned him
Muslim ibn al-Qasim al-Andalusi: Trustworthy