Abu al-Abbas ibn 'Uqda al-Kufi: He was one of the Hadith scholars, pious, trustworthy, knowledgeable in Hadith and narrators
Abu Hatim ibn Hibban al-Busti: Trustworthy, firm, knowledgeable in Hadith
Ahmad ibn Hanbal: No one from Khurasan came to me who was more knowledgeable than him
Ibn Hajar al-'Asqalani: Trustworthy Hadith scholar
Al-Khatib al-Baghdadi: He was one of those known for his knowledge of jurisprudence, Hadith, and memorization
Al-Dhahabi: The Hadith scholar
Abd al-Hayy ibn al-'Imad al-Hanbali: Trustworthy
Yahya ibn Zakariya al-Naysaburi: Trustworthy, great