Nafi ibn al-Harith
Nāfi‘ ibn Al-Ḥārith ibn Kaladah ath-Thaqafī ) was an Arab physician of the Banu Thaqif. He was recommended by Muhammad, and treated Sa`d ibn Abi Waqqas and Abu Bakr. When the latter was dying, he designated his illness as poisoning.Trained in Yemen, he is reported to have written a book named Dialog in Medicine. He was the chief physician and teacher at the Academy of Gundishapur in Persia.
He was half brother of Nufay ibn al-Harith.
Some historians maintain that he received his medical education at the Jundishapur medical school of Persia where he learnt the teachings of Aristotle and Galen.
