Baharestan Carpet
Sa'd ibn Abi Waqqas , who led the Arab troops during the capture of Ctesiphon , sent the carpet to the Rashidun caliph Umar , who was in Medina . 
<triplet> Rashidun <subj> caliph <obj> part of <subj> Umar <obj> head of state <subj> Medina <obj> capital <triplet> caliph <subj> Rashidun <obj> has part