Born in 470 AH.
He also studied under Abū al-Ghanāʾim ibn Abī ʿUthmān, Ṭirād ibn Muḥammad al-Zaynabī, and Abū Naṣr ibn al-Mujallī.
Those who transmitted his narrations include Aḥmad ibn Ṣāliḥ al-Jīlī, Abū Bakr al-Bāqdarāʾī, Abū al-ʿAlāʾ al-ʿAṭṭār, ʿAbd al-Mughīth ibn Zuhayr, Aḥmad ibn Ṭāriq, Abū Ṭālib ibn ʿAbd al-Samīʿ, ʿAlī ibn Abī Saʿd ibn Tumayrah, Abū al-Futūḥ ibn al-Ḥuṣrī, Zayd ibn Yaḥyā al-Bayyiʿ (the vendor), Ẓafar ibn Sālim al-Bayṭār (the veterinarian), his sister Yasmīn, Shaykh Shihāb al-Dīn ʿUmar al-Suhrawardī, al-Nafīs ibn Karam, Hibat Allāh ibn ʿUmar ibn Kamāl the cotton dealer, and a number of others.
The last person to receive authorization (ijāza) from him was ʿAjība al-Bāqdarāʾīyah.
He passed away on the last day of Dhū al-Ḥijjah in 557 AH.
A curious coincidence is that in that same year his namesake, Abū Bakr Hibat Allāh ibn Aḥmad ibn Muḥammad al-Ḥaffār (1), also died in Baghdad. He had studied under Rizq Allāh al-Tamīmī and granted ijāza to Karīmah.
268 – al-Mūsawī, Abū al-Ḥasan ʿAlī ibn Ḥamzah ibn Ismāʿīl
The noble sayyid, scholar, ascetic, and righteous man—the shaykh of Herat—Abū al-Ḥasan ʿAlī ibn Ḥamzah ibn Ismāʿīl ibn Ḥamzah al-Hāshimī, al-ʿAlawī, al-Mūsawī, al-Harawī.
Born in 468 AH.
He heard hadith from Muḥammad ibn ʿAlī al-ʿUmayrī, Najīb ibn Maymūn, Abū ʿĀmir al-Azdī, Ṣāʿid ibn Sayyār, the ḥāfiẓ ʿAbd Allāh ibn Yūsuf al-Jurjānī, and others.