Abu Sa'd al-Sam'ani: He was a man of virtue, knowledge, erudition, and memorization, and he has beautiful works in the sciences of hadith and others.
Abu Ya'la al-Khalili: A scholar, knowledgeable, vast in knowledge, with many writings, I have not seen anyone more knowledgeable than him, and once: al-Daraqutni debated him, and he is trustworthy, vast in knowledge, his writings reached five hundred parts
Ibn Hajar al-'Asqalani: Imam, truthful
Ibn Khallikan: The Imam of the hadith scholars in his time, and the one who authored books that were not preceded by their like, he was a knowledgeable and vast scholar, and he was only known as al-Hakim because he held the position of judge
Al-Khatib al-Baghdadi: He was a man of virtue, knowledge, erudition, and memorization, and he has several works in the sciences of hadith, and he was trustworthy
Al-Daraqutni: He was asked who memorized more: Ibn Mandah or Ibn al-Bayyi'? He said: Ibn al-Bayyi' was more accurate in memorization
Al-Dhahabi: One of the seas of knowledge, despite the little criticism against him, he is mostly respected by the two sheikhs, Baiquni and Dhu al-Nurin, and he was only criticized because he spoke about Mu'awiyah, and in al-Sir he said: The Imam, the hafiz, the critic, the scholar, the sheikh of the hadith scholars, and once: He is not a Shiite, but he inclines towards Shiism, and he heard from about two thousand sheikhs
Jalal al-Din al-Suyuti: Trustworthy
Abd al-Hayy ibn al-'Imad al-Hanbali: Trustworthy, authoritative
Abd al-Ghaffar al-Farisi: The Imam of the hadith scholars in his time, and the one who truly knows him, and his house was a house of righteousness, piety, and admonition
Imad al-Din ibn Kathir al-Dimashqi: One of the people of religion, honesty, integrity, precision, objectivity, and piety, and once: He wrote large and small books
Umar ibn Ahmad al-'Abdari: Abu Bakr ibn Ishaq and Abu al-Walid used to refer to him in questions about criticism and authentication, and the reasons behind hadith, its authenticity, and weakness
Muhammad ibn Tahir al-Qaysarani: Trustworthy in hadith, a wicked Shiite