He narrated from Abū ʿAmr ibn al-ʿAlāʾ, Shuʿbah, and a host of other scholars.
He also learned directly from the Bedouins.
He was ranked alongside Sībawayh and al-Naḍr ibn Shumayl.
He produced several works, including Gharīb al-Qurʾān (Rare Expressions in the Qur’an), the book Jamāhīr al-Qabāʾil (The Major Arab Tribes), Kitāb al-Maʿānī (Semantics), and other writings besides. He was one of the companions of al-Khalīl ibn Aḥmad (1).

He died in 195 AH, on the very day the poet Abū Nuwās passed away.
Another report states that he died sometime after 200 AH, in Basra, having previously travelled to Khurāsān.

96 – Ḥafṣ ibn ʿAbd al-Raḥmān ibn ʿUmar ibn Furrūkh al-Balḫī * (S)
The imām, jurist, and mufti of Khurāsān, Abū ʿUmar al-Balḫī—later of Naysābūr—a Ḥanafī.

He transmitted ḥadīth from ʿĀṣim al-Aḥwal, Dāwūd ibn Abī Hind, Ibn ʿAwn, Abū Ḥanīfah, ʿĪsā ibn Ṭahmān, Saʿīd ibn Abī ʿArūbah, Sufyān al-Thawrī, Isrāʾīl, and others besides them.
Among those who narrated from him are al-Ḥusayn ibn Manṣūr, Muḥammad ibn Rāfiʿ, and Salamah ibn