Who was a physician, Al-Kindi or Abu Yusuf?
Al-Kindi: Abu Yūsuf Yaʻqūb ibn ʼIsḥāq aṣ-Ṣabbāḥ al-Kindī (Arabic: أبو يوسف يعقوب بن إسحاق الصبّاح الكندي‎ ‎ , Latin: "Alkindus" ) (c. 801–873 AD), known as "the Philosopher of the Islamic empire (Abbasid Caliphate)", was a Arab Muslim philosopher, polymath, mathematician, physician and musician. Abu Yusuf: Yaqub ibn Ibrahim al-Ansari, better known as Abu Yusuf (Arabic: أبو يوسف‎ ‎ ) (d.798) was a student of jurist Abu Hanifah (d.767) who helped spread the influence of the Hanafi school of Islamic law through his writings and the government positions he held.
i don't know