Sahih al-Bukhari Hadith 452 – Volume 4, Book 54

English

Volume 4, Book 54, Number 452:
Narrated Abu Huraira:
The Prophet said, "As long as any-one of you is waiting for the prayer, he is considered to be pray –
ing actually, and the angels say, 'O Allah! Be merciful to him and forgive him', (and go on saying so)
unless he leaves his place of praying or passes wind (i.e. breaks his ablution)."