Who covered the most disciplines, Abū Sahl al-Qūhī or Al-Farabi?
Abū Sahl al-Qūhī Abū Sahl Wayjan ibn Rustam al-Qūhī (al-Kūhī ; Persian: ابوسهل بیژن کوهی‎ ‎ "Abusahl Bijan-e Koohi") was a Persian mathematician, physicist and astronomer. He was from Kuh (or Quh), an area in Tabaristan, Amol, and flourished in Baghdad in the 10th century. He is considered one of the greatest Muslim geometers, with many mathematical and astronomical writings ascribed to him.
Asbat ibn Muhammad Abu Muhamamd Asbat ibn Muhammad al-Qurashi al-Kufi (Arabic: أبو محمد أسباط بن محمد القرشي الكوفي‎ ‎ , died 200 AH) was a muhaddith from Kufa.