The final Prophet of God (sallallaahu alaihi wasallam) said,
“My entire nation is safe, except al-Mujahirin (those who boast of their sins).
Among the Mujaharah is that a man commits an (evil) act, and wakes up in the morning while Allah has kept his (sin) a secret, he says: “O so- and-so! Last night I did this and that.”
He goes to sleep while Allah has kept his (sin) a secret but he wakes up in the morning and uncovers what Allah has kept a secret!”