1- Shaving or cutting the hair short must not be less than removing (by any mean) three hairs, or parts of them, even if they are the only hairs on one's head, whether they are together or in different places of the head.

If one has a single hair on his head he is obligated to shave it.

The hair must be from the head, not from the face, such as a moustache or beard.

2- It should take place after stoning Jamrat Al-Aqaba, or after the going-forth tawaf.