Some old people get angry with those who get to a certain spot in the mosque before them

There are some old people who, when they go to the mosque and find that someone is sitting in the spot where they usually pray, get angry. What is the ruling on this?

Praise be to Allah, and blessings and peace be upon the Messenger of Allah:

This is not permissible. The one who got there first has more right to the spot than they do. They should not get angry, and they have no rights in this regard.