It is also reported that in 18 AH Abu Musa took al-Ruha, Sumeisat, and the adjoining districts by force. (1)

Zuhayr ibn Muʿāwiyah relates: Ḥumayd narrated to us, from Anas: Al-Hurmuzān surrendered at Tustar, placing himself under the judgment of ʿUmar. Abu Musa therefore sent him with me to the Commander of the Believers, and I brought him before ʿUmar. ʿUmar said to him, “Speak; you are safe.” ʿUmar spared his life; al-Hurmuzān then embraced Islam, and ʿUmar assigned him a stipend. (2)

Ibn Isḥāq states: Abu Musa marched out from Nahāwand and conquered Isfahān in 23 AH. (3)

Mujālid, on the authority of al-Shaʿbī, said: ʿUmar wrote in his testament that none of his governors should remain in office for more than one year, but that the Ashʿarī should be left in post for four years. (4)

Ḥumayd ibn Hilāl, reporting from Abū Burdah, said: I heard my father swear that when he was removed from Basra he departed with nothing but six hundred dirhams. (5)

Al-Zuhri, on the authority of Abū Salamah, said: When Abu Musa sat with ʿUmar, ʿUmar would sometimes say, “Remind us, Abu Musa,” and Abu Musa would recite. (6)