English translation
[1652] 68 - (713) It was narrated that Abû Usâid said: "The Messenger of Allâh ﷺ said: 'When one of you enters the Masjid, let him say: "Allâhummaftahli abwâba rahmatik (O Allâh, open to me the gates of Your mercy.)" And when he leaves, let him say: "Allâhumma innî as'aluka min faḍlik (O Allâh, I ask You of Your Bounty.)"'
