(2) باب فِي الصَّلاَةِ
Narrated Abu Huraira:
The Prophet (ﷺ) said, "Allah does not accept prayer of anyone of you if he does Hadath (passes wind) till he performs the ablution (anew).
Reference: Sahih al-Bukhari 6954
In-book reference: Book 90, Hadith 2
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 9, Book 86, Hadith 86