Sunan Abi Dawud 886
سنن أبي داود#886Da'ifNarrated Abdullah ibn Mas'ud: 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 'Abd Allah (b. Mas'ud)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniDaif
Muhammad Muhyi Al-Din Abdul HamidDaif
Zubair Ali ZaiDaif
In-book reference: 2:496