It is a Sunnah (some say Waajib) to say the Basmalah (Bismillaah) before you begin.
It is from the Sunnah to wash the hands three times at the beginning.
When wiping/washing parts of the body, once is minimum, twice is better, three times is best. Four times is extremism.
Water is placed in the mouth and moved around and at the same time, it is placed in the nose and blown out. (i)
If you cannot do the mouth and nose at the same time, doing them separately is permissible. (ii)
Water must be in the mouth properly and moved around as well as up the nose, not the tip. (iii)
The face is to be washed. The face is: hairline to below chin in height and ear to ear in width. (i)
The ears are not part of the face, rather, they are part of the head as we will come to see. (ii)
The right hand is washed all the way up the arm to the elbow and including the elbow.
The left hand is washed all the way up the arm to the elbow and including the elbow.
The head is wiped with water from the front to the back and it is a Sunnah to go from back to front after front to back.
With the same water, the ears are wiped from the outside with the thumb and the inside through the lines.
The right foot is washed from the tip of the toes to the ankle and including the ankle. You must wash between the toes.
The left foot is washed from the tip of the toes to the ankle and including the ankle. You must wash between the toes.
If you miss an inch when it comes to performing Wudhoo’, you have no Wudhoo’ and your Salaah is invalid.
You must perform these actions in order. If you intentionally change the order, your Wudhoo’ is invalid.
If you do something that nullifies Wudhoo’ while you are performing Wudhoo’, then you must begin again.
You must perform Wudhoo’ at a rate that if the previous section becomes dry by the time you move on, you must begin again.