Kitaab-ul-Wudu (Book of Ablution) starts here. An important thing about Wudu: only Hadath breaks it. And what is Hadath?
Narrated Abu Huraira:
Allah’s Apostle said, “The prayer of a person who does Hadath (passes urine, stool or wind) is not accepted till he performs (repeats) the ablution.” A person from Hadaramout asked Abu Huraira, “What is ‘Hadath’?” Abu Huraira replied, ” ‘Hadath’ means the passing of wind from the anus.”
Congratulations on learning a new term ‘hadath’ (it’s Arabic)! :D