Abu Tamimah Hajimi narrates from a companion who was riding behind the Noble Prophet (peace and blessings be upon him), he says: I was riding on a donkey behind the Noble Prophet (peace and blessings be upon him), the donkey stumbled, upon which I said: May the devil perish. But the Noble Prophet (peace and blessings be upon him) said to me: Do not say, "May the devil perish," because when you say, "May the devil perish," the devil begins to consider himself great in his heart and says: I made him fall by my power. But (in such a situation) if you say "Bismillah" (In the name of Allah), the devil's self becomes humiliated, to the extent that he becomes even smaller than a fly. And in another narration, it is mentioned that he becomes so humiliated that he becomes as small as a fly.