al-Khatib al-Baghdadi: Imam, Hadith Scholar
al-Daraqutni: Trustworthy, and he once said: A trustworthy sheikh, he was an Imam, and he was compared to Ahmad ibn Hanbal in his prime, knowledge and piety, and he was one of the most knowledgeable people in this art, and he said in al-'Ilal: An Imam, scholar, knowledgeable in everything, proficient in every science, truthful
al-Dhahabi: The Imam, the Hadith Scholar
al-Qifti: A leader in asceticism, knowledgeable in the schools of thought, insightful in Hadith, a Hadith scholar