▁H â f iz ▁Os man ▁incorpor ated ▁such ▁texts , ▁which ▁had ▁been ▁popular ▁for ▁some ▁time , ▁in ▁a ▁formal ▁design ▁that ▁soon ▁became ▁standard ▁for ▁this ▁art ▁form . ▁H ily e ▁came ▁to ▁be ▁used ▁as ▁wall ▁decor ations ▁or ▁surface ▁ad orn ments , ▁ful fill ing ▁much ▁the ▁same ▁function ▁as ▁figur ative ▁paint ings ▁in ▁other ▁religious ▁trad itions . ▁While ▁containing ▁a ▁concrete ▁and ▁artist ically ▁appe aling ▁description ▁of ▁Pro ph et ' s ▁appearance , ▁they ▁comp lied ▁with ▁the ▁strict ures ▁against ▁figur ative ▁dep ict ions ▁of ▁the ▁Pro ph et , ▁leaving ▁his ▁appearance ▁to ▁the ▁vie wer ' s ▁imagination . ▁ ▁H â f iz ▁Os man ▁also ▁re inv ig or ated ▁Ham d ul lah ' s ▁tradition , ▁in ▁particular ▁the ▁re - int roduction ▁of ▁a ▁number ▁of ▁scripts ▁that ▁had ▁fallen ▁into ▁dis use . ▁Among ▁his ▁surv iving ▁works ▁are ▁copies ▁of ▁the ▁Kor an ▁held ▁at ▁the ▁Top k api ▁Palace ▁Museum ▁Library ▁in ▁Ist an bul ▁and ▁the ▁N asser ▁D . ▁K hal ili ▁Collection . ▁The ▁volumes ▁of ▁the ▁Kor an ▁produced ▁by ▁Os man ▁were ▁among ▁the ▁most ▁highly ▁sought - after ▁in ▁his ▁time . ▁ ▁He ▁gave ▁less ons ▁to ▁the ▁poor ▁on ▁Sund ays ▁and ▁less ons ▁to ▁the ▁wealth y ▁on ▁Wed nes days . ▁Through out ▁his ▁lifetime , ▁he ▁trained ▁a ▁large ▁number ▁of ▁call ig raph ers , ▁of ▁whom