Abu Hatim al-Razi: He narrates Munkar (rejected) Hadiths from al-Qasim
Abu Hatim ibn Hibban al-Busti: He mentioned him in al-Thiqat (the trustworthy)
Abu Dawud al-Sijistani: There is nothing wrong with him
Abu Zar'ah al-Razi: He is Shaykh Len al-Hadith (an old man weak in Hadith)
Ibn Hajar al-'Asqalani: Saduq (truthful) but he makes mistakes
Ali ibn al-Madini: His Hadiths resemble the Hadiths of al-Qasim Abi Abd al-Rahman, and he considered him acceptable
Muhammad ibn Isma'il al-Bukhari: Muqarib al-Hadith (close to being acceptable in Hadith)
Authors of Tahrir Taqrib al-Tahdhib: Saduq (truthful) Hasan al-Hadith (good in Hadith)