What is the ruling on the prayer of one who doubts the ritual purity of his clothes due to recurring obsessive whispers, and must he repeat the prayer if the impurity becomes evident later?

A Muslim must ignore the whispers and schemes of Satan. If he doubts his prayer or purity, he should not pay attention to these doubts unless he hears a sound or smells an odor. He should firmly believe and be certain that his garment is pure and that nothing has exited from him. He must act according to the apparent state and presume the original state, which is purity, until he is certain of the contrary. Indeed, doubt is from Satan and his tricks by which he ensnares people. He should also be keen on performing congregational prayers in the mosque.