Abu Ahmad ibn Adi al-Jurjani: In my view, there is nothing wrong with him
Abu Dawud al-Sijistani: Weak
Abu Zar'ah al-Razi: Trustworthy
Ahmad ibn Hanbal: Trustworthy, firm in Hadith, except that he was a Murji'i
Ahmad ibn Shuayb al-Nasa'i: Weak, not strong
Ahmad ibn Salih al-Jili: Trustworthy
Ibn Hajar al-'Asqalani: Truthful, but with some errors
al-Daraqutni: Not strong
al-Dhahabi: Truthful
Zakariya ibn Yahya al-Saji: Truthful, not strong, there is weakness in him
Shu'bah ibn al-Hajjaj: He does not consider him reliable, nor does he approve of him
Ali ibn al-Madini: A righteous sheikh who was the judge of Basra, he died suddenly
Amr ibn Ali al-Fallas: He is not abandoned in Hadith
Authors of Tahrir Taqrib al-Tahdhib: A sheikh about whom there is disagreement, but in our view he is truthful, good in Hadith, and Muslim included him in his Sahih
Yahya ibn Sa'id al-Qattan: He does not approve of him, and he was asked: Did you narrate anything from Ibn Abi 'Urwah on the authority of Umar ibn Amir? He said: No, not even a letter, nor from anyone other than him, meaning nor from anyone other than Sa'id ibn Abi 'Urwah on the authority of Umar ibn Amir
Yahya ibn Ma'in: In the narration of Ahmad ibn Abi Yahya: There is nothing wrong with him, trustworthy. In the narration of Abdullah ibn Ahmad ibn Ibrahim al-Dawraqi: A prominent Kufan, weak