Before offering the prayer one must be in good shape and pure condition. It is necessary to wash the parts of the body which are generally exposed to dirt or dust or smog. This performance is called ABLUTION (Wudu') and is preferably carried out as follows:

1. Declare the intention that the act is for the purpose of worship and purity, start by saying Bismillah.
2. Wash the hands up to the wrists, three times.
3. Rinse out the mouth with water, three times, preferably with a brush whenever it is possible.
4. Cleanse the nostrils of the nose by sniffing water into them, three times.
5. Wash the whole face three times with both hands, if possible, from the top of the forehead to the bottom of the chin and from ear to ear.
6. Wash the right arm three times up to the far end of the elbow, and then do the same with the left arm.
7. Wipe the whole head or any part of it with a wet hand, once.
8. Wipe the inner sides of the ears with the forefingers and their outer sides with the thumbs. This should be done with wet fingers.
9 Wash the two feet up to the ankles, three times, beginning with the right foot.

At this stage the ablution is completed, and the person who has performed it is ready to start to start his prayer.When the ablution is valid a person may keep it as long as he can, and may use it for as many prayers as he wishes. But it is preferable to renew it as often as possible. It is also preferable to do it in the said order, although it will be accepted from those who fail to keep this order. Ablution in the said way is sufficient for prayer unless it is any reason.
Nullification of the Ablution
The ablution becomes nullified by any of the following:
1. Natural discharges, i.e., urine, stools, gas, etc...
2. The flow of blood or pus and the like from any part of the body;
3. Vomiting;
4. Falling asleep;
5. Losing one's reason by taking drugs or any intoxicating stuff.

After the occurrence of any of these things the ablution must be renewed for prayer. Also, after natural discharges, water should be applied because the use of toilet tissues may not be sufficient for the purpose of purity and worship.

The Complete Ablution (Ghusl/Bath)
The whole body with the nostrils, mouth and head must be washed by a complete bath before commencing prayer in any of the following cases:

1. After intimate intercourse;
2. After wet dreams; or night discharge;
3. Upon expiration of the menstruation period of women;
4. At the end of the confinement period of nursing women, which, is estimated at a maximum of forty days. If it ends before, complete ablution should be done.

    It should be pointed out that at the start of the bath or ablution the intention must be clear that it is for the purpose of purity and worship. Also, a person who is performing an ablution, partial or complete, should combine his performance with some utterances glorifying God and asking Him for true guidance. The forms of such utterances are described in detail in the elaborate sources of the religion. One, however, can say one's own best utterances if one does not know the exact wording. That is sufficient as long as it is in the praise of God and is said with sincerity.