Sunan At-Tirmidhi
Hadith #3114
Narrated Ibn Mas'ud:that a man unlawfully kissed a woman. So he came to the Prophet (ﷺ) to ask him about its atonement. So (the following) Ayah was revealed: And perform the Salat, at the two ends of the day and in some hours of the night (11:114). The man said: ""Is this for me O Messenger of Allah?"" He said: ""For you and for whoever does that among my Ummah