Narrated Abdullah ibn Masud: The Prophet صلی اللہ علیہ وسلم 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).