Abū Ḥātim declared him reliable (1). He died before the year 200 AH, and al-Bukhārī cited his narrations in the Book of Manners.
178 – Isḥāq ibn Buhlūl ibn Ḥassān, Abū Yaʿqūb al-Anbārī *
A ḥāfiẓ, trustworthy, and erudite scholar; known as Abū Yaʿqūb, of the Tanūkhī clan from al-Anbār.
Birth: al-Anbār, 164 AH.
He heard ḥadith from his father; Sufyān ibn ʿUyaynah; Abū Muʿāwiyah al-Ḍarīr; Yaḥyā ibn Saʿīd al-Qaṭṭān; Ismāʿīl ibn ʿUlayyah; Wakīʿ ibn al-Jarrāḥ; Shuʿayb ibn Ḥarb; Isḥāq al-Azraq; Abū Ḍamrah Anas ibn ʿIyāḍ; ʿAbd al-Raḥmān ibn Mahdī; Yaḥyā ibn Ādam; and many others. He was regarded as one of the great repositories of knowledge.
Those who transmitted from him include Ibrāhīm al-Ḥarbī, Abū Bakr ibn Abī al-Dunyā, Jaʿfar al-Firyābī, Yaḥyā ibn Muḥammad ibn Ṣāʿid, Abū ʿAbd Allāh al-Maḥāmilī, his grandson Yūsuf ibn Yaʿqūb ibn Isḥāq al-Azraq, and others.
Abū Bakr al-Khaṭīb said: “He composed a work on the Qurʾānic readings, compiled a Musnad, and authored a book on jurisprudence. He also adopted independent legal positions, meaning he exercised ijtihād and did not imitate anyone.” He further said, “He was reliable” (2).