Some people find a small gap and squeeze in, causing discomfort for the ma'mums. Is it permissible for the one who experiences this tightness to move back?

Question : Yes. Of course, the people, O Shaykh, what is it? A gap, meaning a very small one, so he enters and it becomes tight for those inside. Does the second person, meaning, go back and cut in?

Answer : If he fears that the tightness will disturb his prayer, there is no harm in him moving back; in fact, we say this is preferable. But as for the one who enters a small gap and has a large body, it is forbidden for him to do so because he harms the people. Yes, that is correct.