Abu Ahmad ibn Adi al-Jarjani: He was noble like his father, and he held a special place in knowledge. He revived the knowledge of his father from his recitations, especially before he recited it to others.
Abu al-Husayn ibn al-Munadi: There was no one in the world who narrated more accurately from his father than him, and we have always seen our great sheikhs testify to his knowledge of men and the flaws of hadith.
Ahmad ibn Hanbal: He possessed a great deal of knowledge, and once: He is fortunate in the knowledge of hadith, or in the memorization of hadith, and once: He hardly ever discusses with me except with what I do not memorize.
Ahmad ibn Shuayb an-Nasa'i: Trustworthy
Ahmad ibn Muhammad al-Khallal: He was a righteous man, truthful in speech, and very shy.
Ibn Abi Hatim ar-Razi: I met him and studied with him under Ibrahim ibn Malik al-Bazzaz. He wrote to me about issues related to his father and the flaws of hadith. He was truthful and trustworthy. He narrated from his father, Abu ar-Rabi' az-Zahrani, Abd al-A'la ibn Hammad an-Narsi, Hadba ibn Khalid, and Ibrahim ibn Ziyad as-Sablani.
Ibn Hajar al-'Asqalani: Trustworthy
Al-Khatib al-Baghdadi: He was trustworthy, ثبتا (meaning unknown), understanding.
Al-Daraqutni: In the questions of Abu Abdur-Rahman as-Sulami, he said: Trustworthy, firm, and once: Trustworthy, noble.
Adh-Dhahabi: The Imam, the Hadith memorizer, the critic, the Muhaddith of Baghdad, and he said: He was pious, religious, truthful, a follower of hadith, and knowledgeable about men.
Badr ibn Abi Badr al-Maghzaili: A genius, son of a genius.
Muhammad ibn Sa'd Katb al-Waqidi: Noble like his father.
Nur ad-Din al-Haythami: Trustworthy Imam, Hadith Master