Abu Dawud said: Shu'bah on the authority of Qatadah added: We lowered down our heads (on accounts of dozing) in the day of the Messenger of Allah (ﷺ).
Abu Dawud said; This tradition has been transmitted through a different chain of narrators.
In-book : Book 1, Hadith 200
English translation : Book 1, Hadith 200