Sahih Bukhari

Narrated Abu Huraira:Allah's Messenger (ﷺ) said, ""The prayer of a person who does Hadath (passes urine, stool or wind) is not accepted till he performs the ablution."" A person from Hadaramout asked Abu Huraira, ""What is 'Hadath'?"" Abu Huraira replied, "" 'Hadath' means the passing of wind