▁wa ived ▁and ▁he ▁would ▁be ▁entitled ▁to ▁the ▁lands ▁cultiv ated . ▁Therefore , ▁this ▁policy ▁did ▁not ▁differ ▁from ▁that ▁of ▁the ▁A cha emen ids ▁in ▁not ▁getting ▁any ▁tax ▁from ▁the ▁people ▁who ▁rev ived ▁abandoned ▁lands . ▁The ▁Arab s ’ ▁support ive ▁policy ▁on ▁q an ats ▁was ▁so ▁successful ▁that ▁even ▁the ▁holy ▁city ▁of ▁Me cca ▁gained ▁a ▁q an at ▁too . ▁The ▁Pers ian ▁historian ▁Ham d ol lah ▁Most ow fi ▁writes : ▁“ Z ob ey de ▁Kh ato on ▁( Har oon ▁al - R ash id ’ s ▁wife ) ▁constructed ▁a ▁q an at ▁in ▁Me cca . ▁After ▁the ▁time ▁of ▁Har oon ▁al - R ash id , ▁during ▁the ▁cal i ph ▁M og ht ader ’ s ▁reign ▁this ▁q an at ▁fell ▁into ▁decay , ▁but ▁he ▁re h abil itated ▁it , ▁and ▁the ▁q an at ▁was ▁re h abil itated ▁again ▁after ▁it ▁col lapsed ▁during ▁the ▁reign ▁of ▁two ▁other ▁cal i ph s ▁named ▁G ha em ▁and ▁Nas er . ▁After ▁the ▁era ▁of ▁the ▁cal i ph s ▁this ▁q an at ▁completely ▁fell ▁into ▁ru in ▁because ▁the ▁desert ▁sand ▁filled ▁it ▁up , ▁but ▁later ▁Am ir ▁Cho op an ▁rep a ired ▁the ▁q an at ▁and ▁made ▁it ▁flow ▁again ▁in ▁Me cca .” ▁ ▁There ▁are ▁also ▁other ▁historical ▁texts ▁prov ing ▁that ▁the ▁Abb as ids ▁were ▁concerned ▁about ▁q