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.
Sharif al-Murtaza Abu al-Qāsim ‘Alī ibn Husayn al-Sharīf al-Murtadhā (Arabic: أبو القاسم علي بن الحسين الشريف المرتضى ) (commonly known as: Sharīf Murtadhā, Sayyid Murtadhā, (Murtazā instead of Murtadhā in non-Arab languages)) (965 - 1044 AD ; 355 - 436 AH) also popular as Alam al Huda was one of the greatest Shia scholars of his time and was one of the students of Shaykh al-Mufīd . He was the elder brother of Al-Sharif al-Radi (Seyyed Razi), the compiler of Nahjul Balagha. He was four years older than his brother. He lived during the era of Buyid Dynasty. It was the golden age of Arabic literature, and great poets like Al-Mutanabbi and Al-Ma`arri were among his contemporaries.