83. Hadith: Ubayy ibne-K'ab Radiyallahu 'anhu narrates that once the Mushrikeen (polytheists) said to Nabi Sallallahu 'alaihi wasallam: O Muhammad! What is the lineage of your Rabb? Thereupon Allah Subhanahu wa Ta'ala, sent down (Surah Ikhlas): "Say (O Muhammad)! He is Allah, The One. Allah, the Self-Sufficient upon Whom all depend. He does not give birth, nor was He born, and there is none comparable to Him". (Musnad Ahmad)