Nullifiers of Wudu
- Anything that come out the back passage (urine, semen, prostatic fluid, istihadaah, faeces, release of gas):
Allah says: “…or one of you comes from the place of relieving himself…” Meaning after one relieves oneself.
Narrated Abu Hurairah (May Allah be pleased with him) Allah’s Messenger (ﷺ) said, “The Salat of a person who does Hadath (passes urine, stool or wind) is not accepted till he performs (repeats) the Wudu.” A person from Hadaramout asked Abu Hurairah, “What is Hadath?” Abu Hurairah replied, “Hadath means the passing of wind from the anus.”
- Sleep which makes one lose their conscious:
Safwaan ibn Assal (May Allah be pleased with him) narrated: “When we were travelling, Allah’s Messenger (ﷺ) would order us not to remove our Khuff (leather socks) for three days and nights, except for Janaabah (state of major impurity), but (not) for defecating, urinating, and sleep.”
The sleep mentioned is the deep sleep that makes one lose his consciousness. This type of sleep nullifies wudu.
- Losing consciousness (fainting, etc. even for a moment, invalidates his wudu’):
The majority of scholars have agreed that losing consciousness breaks wudu like when the same when one falls into deep sleep.
(Extra notes: Ibn Qudaamah said: “Loss of consciousness due to insanity, fainting, intoxication and medicines that cause loss of consciousness invalidates wudu’ whether the duration is brief or long, according to scholarly consensus. Ibn al-Mundhir said: the scholars are unanimously agreed that one who has fainted must do wudu’. The loss of consciousness in these cases is greater than that of one who goes to sleep, because they do not respond to any stimuli. The fact that wudu’ is required of one who sleeps indicates that it is also required in cases that are more severe.”)
- Touching the private parts directly without desire, both for men and woman:
Busrah bint Safwan narrated (May Allah be pleased with her) that the Prophet (ﷺ) said “Whoever touches his penis, then he is not to pray until he performs Wudu.”
Talq bin Ali (and he is) Al-Hanafi narrated from his father, that: the Prophet (ﷺ) said: ‘Is it other than a piece of his flesh?” Or: “part of him?”
Sheikh Albani (May Allah have mercy on him) mentioned: However, if it is touched with lust (desire), then the touch is not similar to touching any other part of the body, as the other parts are not usually touched with lust. And this is a matter that can clearly be noted……
- Eating camel meat:
Narrated Jabir bin Samura: A man asked the Prophet (ﷺ), “Should I perform ablution after eating mutton?” He replied, “If you wish so”, he then asked, “Should I perform ablution after eating camel meat?” He (ﷺ) said: “Yes”.
 Qur’an: Surah Nisaa: 43
 Sahih: Recorded by Bukhari, 135
 Hasan Sahih: Recorded by Tirmidhi, 96 and he graded it Hasan Sahih
 Taken from al-Mughni (1/234) by Imam Ibn Qudaamah.
 Hasan Sahih: Recorded by At-Tirmidhi who said it is Hasan Sahih, 82
 Hasan Sahih: Recorded by At-Tirmidhi who said it is Hasan Sahih, 85
 Taken from Tamaam al-Minnah, p. 103 by Shaykh Naasir ud-Deen albani
 Sahih: Recorded by Muslim, 75