Hilal al-Sabi'

Abūʾl-Ḥusayn Hilāl b. Muḥassin b. Ibrāhīm al-Ṣābīʾ was a historian, bureaucrat, and writer of Arabic. Born into a family of Sabian bureaucrats, al-Ṣābi converted to Islam in 402-403 A.H/1012 AD. First working under the Buyid amir Ṣamṣām al-Dawla, he later became the Director of the Chancery under Baha' al-Daula's vizier Fakhr al-Mulk.