His statement under no. 9: “Thawbān reported that the Prophet ﷺ said, ‘Three things are not lawful for anyone to do: a man must not lead a congregation in prayer and then reserve the supplication for himself alone—for if he does, he has betrayed them; he must not look into the inside of a house before asking permission—for if he does, he has already entered; and he must not pray while restraining the urge to relieve himself until he first eases himself.’ ”

I say: It is not sound, for its chain of transmission is weak and confused, as has already been shown. Nevertheless, the last clause has supporting narrations that I pointed out in Daʿīf Abī Dāwūd 11 and 12, and some of them appear in Sunan Ibn Mājah 616 – 618.