Abu Ahmad ibn Adi al-Jurjani: There is some inconsistency in his hadiths
Abu Hatim al-Razi: Saduq (truthful)
Abu Dawud al-Sijistani: He was among the best of people
Abu Nu'aym al-Asbahani: He attributed to him frequent mistakes
Ibn Hajar al-'Asqalani: Saduq (truthful) Yahumm (prone to mistakes), and he was a devout worshipper
Al-Dhahabi: Thiqah (reliable)
The authors of Tahrir Taqrib al-Tahdhib: Saduq (truthful), Hasan al-Hadith (good in Hadith), and Al-Dhahabi's authentication of him needs further consideration