▁established ▁author ship ▁Dar band nam ah , ▁a ▁brother ▁of ▁cal i ph ▁H ish am ▁ibn ▁Abd ▁al - Mal ik , ▁named ▁Mos lim , ▁commander ▁of ▁the ▁Muslim ▁forces ▁in ▁D ag est an , ▁capt uring ▁K um uk h ▁appointed ▁Sh akh bal ▁as ▁its ▁governor . ▁In ▁T ari h - D ag istan , ▁the ▁name ▁sh am k hal ▁refers ▁to ▁the ▁name ▁of ▁the ▁first ▁app o inte e ▁of ▁Arab s ▁in ▁K um uk h , ▁in ▁the ▁mountain ous ▁D ag est an . ▁ ▁V . ▁Bart old ▁also ▁stated , ▁that ▁the ▁term ▁" Sh am k hal " ▁is ▁a ▁later ▁form ▁of ▁the ▁original ▁form ▁Sh awk hal , ▁which ▁is ▁mentioned ▁both ▁in ▁the ▁Russian ▁and ▁Pers ian ▁( N iz am ▁ad - D in ▁Sh ami ▁and ▁Sh ere f ▁ad - din ▁Y ez di ) ▁sources . ▁D ag est ani ▁historian ▁Sh ikh sa id ov ▁wrote ▁that ▁the ▁version ▁claim ing ▁Arab ▁descent ▁was ▁in ▁favor ▁of ▁the ▁dynast y ▁and ▁cler ics ▁( the ▁descend ants ▁of ▁the ▁Pro ph et ▁Muhammad ). ▁A . ▁K and au rov ▁wrote ▁that ▁the ▁Arab ▁version ▁was ▁elabor ated ▁by ▁the ▁Sh am kh als ▁themselves . ▁Also , ▁the ▁title ▁Sh am kh als ▁is ▁not ▁mentioned ▁in ▁the ▁works ▁of ▁the ▁Med ieval ▁Arab ic ▁histor ians ▁and ▁ge ograph ers . ▁ ▁Turk ic ▁version ▁ ▁Among