“The
Messenger of Allah (ﷺ) lagged behind (on a journey) and we reached
the people when ‘Abdur Rahman bin ‘Awf had already led them in
one
Rak’ah of the prayer. When he realized that the Prophet (ﷺ)
was
there, he wanted to step back, but the Prophet (ﷺ) gestured to
him
that he should complete the prayer. He said: ‘You have done
well, do
the same in the future.’”
Sunan Ibn Majah Book 5, Hadith 434