Adam is the first human being, whose creation, fall, and subsequent history and that of his descendants are detailed in the first book of Moses, Genesis, as well as the Quran.
The Quran states:
“And We have certainly created you, [O Mankind], and given you [human] form. Then We said to the angels, ‘Prostrate to Adam’; so they prostrated, except for Iblees. He was not of those who prostrated.” [7:11]
Adam (pbuh) has returned today with Imam Ahmed Al-Hassan (pbuh).