Abu Sa'd al-Sam'ani: Intelligent, clever, and pious
Abu Abd Allah al-Hakim al-Naysaburi: Intelligent, clever and pious, and he was so knowledgeable in his intellect and religion that he was set as an example, and he was one of the most pious of our sheikhs and the best of them in statement
Al-Dhahabi: He is set as an example in intelligence and piety