Banu Thaqif
Nāfi‘ ibn Al-Ḥārith ibn Kaladah ath-Thaqafī () (died 13 AH / 634 – 635 CE)) 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.