Ahmad ibn Kamil al-Shajari: My eyes have never seen anyone like him
al-Khatib al-Baghdadi: One of the scholars of jurisprudence, Quranic sciences, grammar, poetry, history, and the dates of the narrators of Hadith. He has authored works on most of these subjects
al-Daraqutni: Lenient, he may have narrated from his memory what was not in his book. His arrogance ruined him, and he relied on his memory, and narrated from his memory what was not in his book. This is because he did not consider anyone to be of any weight, whether they were jurists or others
al-Dhahabi: The Sheikh, the Imam, the Hadith Scholar, the Judge
Muhammad ibn Razquwayh al-Hafiz: My eyes have never seen anyone like him