English translation
90. Thawbān narrated that the Messenger of Allāh ﷺ said: "Three things are not permissible for anyone to do: No man should lead a people (in prayer), and then mention himself only during the supplication, for if he does so, then he has betrayed them. And no one should glance inside a house before he asks permission, for if he does so, then (it is as if) he has already entered. And no one should offer Ṣalāt while he is feeling discomfort until he lightens (i.e., relieves) himself.” (Hasan)
