Abu Ahmad ibn Adi al-Jurjani: I have not seen anyone more knowledgeable or with better narration than him
Al-Khatib al-Baghdadi: He was trustworthy, firm, and knowledgeable
Al-Daraqutni: Trustworthy, reliable, Imam. He was told: What do you say about what Ibn 'Uqda said? He said: Glory be to Allah, do you think he would be affected by such talk? Even if Ibn 'Uqda was replaced by Ibn Mu'in alive
Al-Dhahabi: One of his generation in memorization, piety, and knowledge
Abd al-Hayy ibn al-'Imad al-Hanbali: An authority, unique in his time, in memorization, piety, and knowledge
Muhammad ibn Ishaq ibn Khuzaymah: Praised him