Narrated Abdullah ibn Masud: The Prophet ﷺ said: When one of you bows, he should say three time,: "Glory be to my mighty Lord, " and when he prostrates, he should say: "Glory be to my most high Lord" three times. This is the minimum number. Abu Dawud said: The chain of this tradition is broken. The narrator 'Awn did not see Abdullah (bin Masud).