The Quran 53:32 (Surah an-Najm)
The ones who avoid the great (kinds) of vice and obscenities, except lesser offences; surely your Lord is Ever-Embracing in (His) Forgiveness. He knows you best, as He brought you into being from the earth, and as you were embryos in your mothers’ bellies; so do not (consider) yourselves cleansed; (only) He knows best him who is pious.
