This prostration was a sign of greeting between them: the person of humble standing prostrated to the person of high standing, the youth to the elderly and the young to the old; it is a slight bowing as is known among non-Arabs, ??? (Tanw??r al-Miqb??s min Tafs??r Ibn ???Abb??s; source)This next commentary is rather interesting since it contradicts Muhammad and confirms what the Jews and Christian