The ruling on a traveler praying behind a resident when he holds that shortening the prayer is obligatory

Question : If a person is behind a resident and he holds that shortening the prayer is obligatory, it is not permissible for him to follow him in prayer. Do you see if a person prayed the Fajr prayer behind someone who is praying the Zuhr prayer?

Answer : It is not permissible for him to pray four rak'ahs just because he completed the prayer with a resident. Even if the imam made a mistake and added a fifth rak'ah, it is not permissible for one who knows that it is an extra to follow him. Yes.