Abu Abdillah al-Hakim al-Naysaburi: He became ill at the end of his life and changed due to the loss of his mind, and once: I went to him and found him not understanding, He criticized his classifications for his origins and his hadith from the books of the people
Abu Amr ibn al-Salah: He mentioned him among those whose minds became confused at the end of their lives
Al-Husayn ibn Safwan al-Baradha'i: He said: His mind became confused at the end of his life
Al-Dhahabi: His mind became confused three years before his death, and people avoided his hadith and narration from him, and once: I did not know anyone who heard from him during the days when he was not of sound mind
Abd al-Hayy ibn al-'Imad al-Hanbali: His mind became confused three years before his death, so they avoided him