1) Washing the face including the mouth and the nostrils, 2) washing the hands up to the elbows, 3) passing wet hands over the head including the ears, 4) washing the feet up to the ankles, 5) observing the right order in ablution, and 6) observing constancy and continuity between the acts of ablution. It is desirable to wash the face including the mouth and the nostrils, hands and feet thrice.

However, the obligatory act is to wash them once. As for the head, it is not desirable to repeat passing wet hands over it; as many authentic Hadith affirm.