▁followed ▁by ▁his ▁son ▁Q ur rah ▁and ▁their ▁gu ards . ▁Con sequently , ▁I bn ▁al - As ht ar ' s ▁left ▁wing ▁was ▁driven ▁back , ▁but ▁under ▁Ab dal lah ▁ibn ▁War qa ' ▁al - Sal uli ▁they ▁collected ▁themselves ▁and ▁joined ▁I bn ▁al - As ht ar ' s ▁right ▁wing . ▁After ward , ▁I bn ▁al - As ht ar ▁directed ▁the ▁right ▁wing ▁under ▁al - Az di ▁to ▁assault ▁the ▁Um ay y ads ' ▁left ▁wing ▁in ▁the ▁hope ▁that ▁Um ay r ▁ibn ▁al - Hub ab ▁would ▁hold ▁true ▁to ▁his ▁promise ▁and ▁fall ▁back ▁as ▁agreed . ▁However , ▁Um ay r ▁held ▁his ▁ground ▁and ▁fier ce ▁fighting ▁en su ed . ▁ ▁Once ▁he ▁saw ▁that ▁the ▁Um ay y ads ' ▁left ▁wing ▁held ▁firm , ▁I bn ▁al - As ht ar ▁changed ▁tack ▁and ▁ordered ▁his ▁troops ▁to ▁attack ▁the ▁Um ay y ads ' ▁center , ▁bel ieving ▁if ▁he ▁could ▁dis per se ▁the ▁core ▁of ▁the ▁Um ay y ad ▁army , ▁the ▁latter ' s ▁right ▁and ▁left ▁wings ▁would ▁like wise ▁dis per se . ▁I bn ▁al - As ht ar ▁took ▁part ▁in ▁the ▁assault ▁and ▁is ▁said ▁to ▁have ▁s lain ▁several ▁Um ay y ad ▁soldiers ▁with ▁his ▁cot erie ▁of ▁close ▁compan ions . ▁Am id ▁the ▁heavy ▁cl ash es , ▁numerous ▁men ▁on ▁both ▁sides ▁were ▁killed ▁and ▁the ▁Um