Isma'il bin Ayyash bin Saleem إسماعيل بن عياش بن سليم · The Book on Faith

that the Messenger of Allah (ﷺ) said: "The adulterer is not a believer while he is committing adultery, and the thief is not a believer while he is stealing, but there is a chance for repentance; (if he repents, Allah will accept the repentance)."