What is the ruling on being absent from Friday prayer due to severe phobia of crowds, and is it permissible to go late to sit in the back rows to avoid this feeling?

The patient is advised to consult the website's counseling section and a specialized doctor. He is not obligated to arrive early for Friday prayer if doing so causes him harm, and he is permitted to sit in the back rows. Friday prayer becomes obligatory for him if he can catch one unit (rak'ah) of it without harm, in accordance with the Almighty's saying: "So fear Allah as much as you are able."