Al-Khalīlī, in his work Irshād, gives the year five, but the first date is more reliable. Al-Khalīlī’s book contains many slips, as though he had dictated it from memory.

178 – al-ʿAnbarī, Abū Isḥāq Ibrāhīm ibn Ismāʿīl
The imam, exemplar, devout scholar, ḥāfiẓ, and exacting critic: Abū Isḥāq Ibrāhīm ibn Ismāʿīl al-ʿAnbarī al-Ṭūsī, the ḥadīth master of Ṭūs. After Muḥammad ibn Aslam he was the most ascetic among them, the closest of them to that scholar in companionship, and the most widely travelled.

He studied under Yaḥyā ibn Yaḥyā al-Tamīmī, Ibn Rāhwayh, ʿAlī ibn Ḥujr, Ibn Ḥumayd, al-Ḥusayn ibn Ḥurayth, ʿUbayd Allāh al-Qawārīrī, Hannād ibn al-Sarī, Abū Muṣʿab, Muḥammad ibn Rumḥ, Hishām ibn ʿAmmār, Qutaybah ibn Saʿīd, Ibrāhīm ibn Yūsuf al-Faqīh, Muḥammad ibn Aslam, and their peers.

Among those who narrated from him were Abū al-Naḍr the jurist, Abū al-Ḥasan ibn Zuhayr, Muḥammad ibn Ṣāliḥ ibn Hāniʾ, and others.

Al-Ḥākim mentions him but gives no date for his death, and the historian of Aleppo, Kāmil al-Dīn al-ʿUqaylī, is likewise silent.

Abū al-Naḍr the jurist said, “I copied his Musnad in my own hand; it ran to 290 fascicles.”

I say: My best estimate is that he died sometime after 280 AH. He was in his eighties, or a little below that, and he was one of the Imams of guidance—may Allah have mercy on him.