▁bog ged ▁down ▁def ending ▁al - Q ar q isi ya ▁from ▁Um ay y ad ▁adv ances . ▁He ▁led ▁further ▁attacks ▁against ▁the ▁Kal b ▁in ▁Sam aw ah , ▁and ▁almost ▁killed ▁Hum ay d ▁at ▁the ▁village ▁of ▁Ka ' aba . ▁The ▁Kal b ▁were ▁ultimately ▁driven ▁out ▁of ▁the ▁Sam aw ah ▁by ▁Um ay r ' s ▁attacks , ▁al beit ▁tempor arily . ▁ ▁Meanwhile , ▁Um ay r ▁ent ang led ▁the ▁Q ays ▁into ▁a ▁blo ody ▁tit - for - tat ▁war ▁with ▁the ▁previously ▁neutral ▁Tag h lib ▁tribe ▁when ▁he ▁led ▁Sul ay mi ▁enc ro ach ments ▁into ▁Tag h lib i ▁territory ▁along ▁the ▁K hab ur ▁River . ▁Z uf ar ▁failed ▁in ▁his ▁attempts ▁to ▁medi ate ▁the ▁dispute ▁and ▁eventually ▁fell ▁in ▁line ▁with ▁Um ay r ' s ▁milit ant ▁approach . ▁Um ay r ▁obtained ▁san ction ▁from ▁Mus ' ab ▁ibn ▁al - Z ub ay r ▁of ▁Ira q ▁to ▁attack ▁the ▁Christian ▁Tag h lib , ▁and ▁mass ac red ▁many ▁of ▁them ▁at ▁Mak sin ▁along ▁the ▁K hab ur . ▁Ra ids ▁and ▁counter - ra ids ▁followed ▁at ▁places ▁str add ling ▁the ▁K hab ur , ▁Bal ikh , ▁Tig ris ▁and ▁Th arth ar ▁rivers , ▁with ▁the ▁Tag h lib ▁typically ▁being ▁the ▁be aten ▁force . ▁However , ▁in ▁ 6 8 9 , ▁the ▁Tag h lib ▁killed ▁Um ay r