Narrated Abu Huraira: The Prophet said, "Allah does not accept prayer of anyone of you if he does Hadath (passes wind) till he performs the ablution (anew).
Hadith Referenceصحيح البخاري / كتاب الحيل / 6954
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة