Ablution is not necessary except to the one to whom ritual impurity occurs. When a man performs ablution, he can pray as many times as he can so long as he does not cause ritual impurity. If something exudes from the urethra (opening for voiding urine) or anus, it necessitates the performance of fresh ablution. However the ablution is not rendered invalid in case of vomiting, bleeding or exudation of pus from a wound, exudation of fluid from the wound or abscess, as opposed to the urethral opening or anus. In such instances, the affected part needs to be washed.

Touching woman or kissing, touching genital organs or seeing the parts does not necessitate ablution. Neither eating, nor drinking water, nor touching wet or dried excreta necessitates ablution, but washing the hands after such events is recommended, the impure part has to be cleaned. The paring of nails, combing the beard, or shaving the head does not render ablution void. But it is proper to wash and cleanse the parts with water in all such cases.

A person who is certain that he has performed his ablution, but has a doubt whether his ablution is still valid, is entitled to act on his certainty. A mere doubt does not render the ablution void. If he is certain that his ablution has been rendered invalid, he should perform the ablution afresh. But when he is certain that he has invalidated his ablution but is doubtful whether he has renewed it, it is not permissible for him to pray until he performs his ablution afresh. After doing ablution if a person sleeps to the extent that he becomes unconscious and unaware of his surroundings then his ablution becomes invalid. When a person nods in drowsiness, but is aware of what is happening around him and retains his feelings and sense of hearing, such conditions do not invalidate the ablution.

Rasulullah (SAWS) said,

“Al wuzuo shatrul imaan.”
“Wuzu (ritual purity) is one half of Faith (Imaan).”

- The Messenger of Allah has made urinating and defecation forbidden in the following instances:
- In a stagnant pool of water.
- In a running stream or on its bank.
- Bank of well whose water is potable.
- Under a fruitful tree.
- On the streets.
- In the cemetery between the graves.
- In the courtyards.
- Urinating from an elevated place or in a standing position.
- Facing Qibla.
- Having one’s back towards Qibla.