Narrated Abu Hurairah: The Prophet ﷺ said: The imam is appointed only to be followed; when he says "Allah is most great, " say "Allah is most great" and do not say "Allah is most great" until he says "Allah is most great. " When he bows; bow; and do not bow until he bows. And when he says "Allah listens to him who praise Him, " say "O Allah, our Lord, to Thee be the praise. " The version recorded by Muslim goes: "And to Thee be the praise: And when he prostrate; and do not prostrate until he prostrates. When he prays standing, pray standing, and when he prays sitting, all of you pray sitting. Abu Dawud said: The words "O Allah, our Lord, to You be the praise" reported by Sulaiman were explained to me by some of our companions.

Narrated Ali ibn Abu Talib: The Prophet ﷺ said: A beggar has the right though he may be riding (a horse).