▁two ▁rival ▁political ▁parties , ▁j ockey ing ▁for ▁power ▁and ▁separated ▁by ▁a ▁fier ce ▁hat red ▁for ▁each ▁other . ▁During ▁H ish am ▁ibn ▁Abd ▁al - Mal ik ' s ▁reign , ▁the ▁Um ay y ad ▁government ▁appointed ▁M ud aris ▁as ▁govern ors ▁in ▁Kh uras an , ▁except ▁for ▁As ad ▁ibn ▁Ab dal lah ▁al - Q as ri ' s ▁ten ure ▁in ▁ 7 3 5 – 7 3 8 . ▁Nas r ' s ▁appointment ▁came ▁four ▁months ▁after ▁As ad ' s ▁death . ▁In ▁the ▁inter im , ▁the ▁sources ▁report ▁various ly ▁that ▁the ▁province ▁was ▁run ▁either ▁by ▁the ▁Sy rian ▁general ▁Ja ' far ▁ibn ▁H anz ala ▁al - B ah ran i ▁or ▁by ▁As ad ' s ▁lieutenant ▁Jud ay ' ▁al - K ir man i . ▁At ▁any ▁rate , ▁the ▁sources ▁agree ▁that ▁al - K ir man i ▁stood ▁at ▁the ▁time ▁as ▁the ▁most ▁prominent ▁man ▁in ▁Kh uras an ▁and ▁should ▁have ▁been ▁the ▁clear ▁choice ▁for ▁governor . ▁His ▁Y em eni ▁roots ▁( he ▁was ▁the ▁leader ▁of ▁the ▁Az d ▁in ▁Kh uras an ), ▁however , ▁made ▁him ▁un pal atable ▁to ▁the ▁C ali ph . ▁ ▁Con quest ▁under ▁Um ay y ads ▁ ▁After ▁the ▁invasion ▁of ▁Pers ia ▁under ▁R ash id un ▁was ▁completed ▁in ▁five ▁years ▁and ▁almost ▁all ▁of ▁the ▁Pers ian ▁territ ories ▁came ▁under ▁Arab