It was narrated from Abu Bakrah that when the Prophet (ﷺ) heard news that made him happy, or for which one should be happy, he would fall down prostrate in gratitude to Allah, the Blessed and Exalted.
Sunan Ibn Majah Book 5, Hadith 592
← Previous Hadith It was narrated from ‘Abdur-Rahman bin Ka’b bin Malik that his father said that when Allah accepted his repentance, he fell down prostrate.

Sunan Ibn Majah Book 5, Hadith 591 Next Hadith → “If I heard a Hadith from the Messenger of Allah (ﷺ), Allah benefitted me with it as much as He willed, and if I heard it from anyone else, I would ask him to swear me an oath, then if he swore an oath I would believe him. Abu Bakr told me and Abu Bakr spoke the truth that the Messenger of Allah (ﷺ) said: ‘There is no man who commits a sin then he performs ablution and does it well, then he prays two Rak’ah,’ (one of the narrators) Mis’ar said: ‘then performs prayer and seeks the forgiveness of Allah, but Allah will forgive him.’

Sunan Ibn Majah Book 5, Hadith 593