It is not permissible to do Hajj or ‘Umrah on behalf of any living person who is able to do that, but in the case of one who is not able, if it is the obligatory Hajj then it is permissible, but if it is nafl then it is the subject of a difference of scholarly opinion.

These are some of the benefits of Hajj: 1- It is a kind of jihad for the sake of Allah; 2- There is an immense reward for pilgrims; 3- In Hajj, Muslims come together and show their love for one another.