Abu Ahmad Ibn Adi al-Jurjani: There is nothing wrong with his hadiths
Abu Hatim Ibn Habban al-Busti: One of the righteous people of Basra
Abu Dawud al-Sijistani: Trustworthy
Abu Zar'ah al-Razi: Trustworthy
Ahmad Ibn Hanbal: Trustworthy, but he used to have bias against Ali
Ahmad Ibn Salih al-Jili: Trustworthy, but he used to have bias against Ali
Ibn Hajar al-'Asqalani: Trustworthy, with some bias
Al-Dhahabi: Ahmad said: Trustworthy, but he has bias against Ali
Abdur Rahman Ibn Yusuf Ibn Khurash: Trustworthy, but he was a pro-Uthman and disliked Ali
Muhammad Ibn Sa'd Kathir al-Waqidi: Trustworthy in hadith, and he narrated authentic hadiths
Yahya Ibn Sa'id al-Qattan: Sulayman al-Taymi had a negative opinion about him
Yahya Ibn Ma'in: Trustworthy, one of the best Muslims, his hadith is not to be criticized