Purity: The Invalidators of Wudu
Practical Laws of Islam as per the teachings of Ayatullah Sistani
Ruling 322:
Seven things invalidate wuḍūʾ:
1. Urinating; and apparently included in the ruling of urinating is the similar moisture that comes out after urinating and before performing istibrāʾ;
2. Defecating;
3. Passing wind of the stomach and the intestine from the anus;
4. Sleeping, which means that simultaneously one’s eyes do not see and one’s ears do not hear; however, if one’s eyes do not see but his ears hear, his wuḍūʾ does not become invalid;
5. Things that cause one to lose his mind, such as insanity, intoxication, and unconsciousness;
6. Istiḥāḍah of a woman, which will be discussed later;
7. Janābah; and based on recommended precaution, all things for which one must perform ghusl.
-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)


