 It is unclear when the Qedarites ceased to exist as a separately defined confederation or people . Allies with the Nabataeans , it is likely that they were absorbed into the <unk> state around the 2nd century CE . In Islam , <unk> 'il is considered to be the ancestral <unk> of the Arab people , and in traditional Islamic historiography , Muslim historians have assigned great importance in their accounts to his first two sons ( Nebaioth and Qedar ) , with the genealogy of Muhammad , a <unk> of God in Islam , alternately assigned to one or the other son , depending on the scholar . 
