ad ▁camp ▁and ▁purs ued ▁their ▁defeated ▁army ▁to ▁the ▁river . ▁More ▁Um ay y ad ▁troops ▁d rown ed ▁in ▁the ▁Kh az ir ▁River ▁than ▁were ▁s lain ▁in ▁battle . ▁ ▁After math ▁ ▁M uk ht ar ▁and ▁his ▁supp or ters ▁viewed ▁U bay d ▁Al lah ' s ▁death ▁as ▁justice ▁for ▁his ▁role ▁in ▁the ▁killing ▁of ▁Hus ay n ▁ibn ▁Ali ▁at ▁Kar b ala ▁in ▁ 6 8 0 . ▁As ▁a ▁result ▁of ▁the ▁battle , ▁M uk ht ar ▁gained ▁control ▁of ▁Mos ul ▁and ▁the ▁surrounding ▁region , ▁and ▁he ▁appointed ▁I bn ▁al - As ht ar ▁governor ▁of ▁Mos ul . ▁The ▁Um ay y ad ▁rout ▁pos ed ▁a ▁major ▁set back ▁to ▁Abd ▁al - Mal ik ' s ▁plans ▁of ▁establish ing ▁Um ay y ad ▁authority ▁over ▁Ira q . ▁ ▁The ▁Q ays i – Y am ani ▁fe ud ▁intens ified ▁in ▁the ▁after math ▁of ▁Kh az ir . ▁The ▁Q ays ▁of ▁the ▁J az ira , ▁led ▁by ▁Z uf ar , ▁gained ▁confidence ▁from ▁the ▁defeat ▁of ▁the ▁Um ay y ad ▁army , ▁which ▁was ▁domin ated ▁by ▁their ▁Kal bi ▁and ▁Kind i ▁riv als . ▁Their ▁position ▁was ▁strength ened ▁by ▁the ▁arrival ▁of ▁Um ay r ▁ibn ▁al - Hub ab ▁and ▁his ▁Sul ay mi ▁tribes men . ▁The ▁defe ction ▁of ▁Um ay r ▁and ▁his ▁men ▁had ▁contributed ▁to ▁the ▁defeat