Abu Salama reported that Abu Hurairah (RA) recited takbir in prayer on all occasions of rising and kneeling. We said: O Abu Hurairah (RA) , what is this takbir? He said: Verily it is the prayer of the Messenger of Allah (ﷺ) .
Hadith ReferenceSahih Muslim / The Book of Prayers / Hadith: 392