Al-Nufaylī said, “Ahmad ibn Hanbal was one of the great luminaries of the religion.”

Al-Marrūdhī related: “I was present when Abū Thawr was consulted about a legal question. He replied, ‘Abū ʿAbd Allāh Ahmad ibn Hanbal—our teacher and our imam—has ruled on it as follows: such-and-such.’”

Ibn Maʿīn said, “I have seen no one who narrates hadith solely for Allah’s sake except three: Yaʿlā ibn ʿUbayd, al-Qaʿnabi (1), and Ahmad ibn Hanbal.”

He also remarked, “They wanted me to be like Ahmad, but by Allah I shall never match him.”

Abū Khaythamah declared, “I have never seen anyone comparable to Ahmad, nor anyone with a heart stronger than his.”

ʿAlī ibn Khushram reported: “I heard Bishr ibn al-Ḥārith say, ‘You ask me about Ahmad ibn Hanbal?! Ahmad was put into the forge and came out pure red gold.’”

ʿAbd Allāh ibn Ahmad said: “Bishr al-Ḥāfī’s companions told him, when my father was being beaten, ‘If only you would go out and announce, “I stand with Ahmad’s position.”’ He replied, ‘Do you want me to assume the station of the prophets?!’”

Al-Qāsim ibn Muḥammad al-Ṣāʿigh recounted: “I heard al-Marrūdhī say, ‘I entered the prison to visit Dhū al-Nūn while we were in al-ʿAskar. He asked, “How is our master faring?”—meaning Ahmad ibn Hanbal.’”

Muḥammad ibn Ḥammād al-Ṭihrānī stated, “I heard the jurist Abū Thawr say, ‘Ahmad ibn Hanbal is more knowledgeable—or more versed in jurisprudence—than al-Thawrī.’”

Naṣr ibn ʿAlī al-Jahḍhamī observed, “Ahmad was the finest scholar of his age.”