(61) باب الْحَدَثِ فِي الْمَسْجِدِ
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "The angels keep on asking Allah's forgiveness for anyone of you, as long as he is at his Musalla (praying place) and he does not pass wind (Hadath). They say, 'O Allah! Forgive him, O Allah! be Merciful to him."
Reference: Sahih al-Bukhari 445
In-book reference: Book 8, Hadith 94
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 8, Hadith 436