When a Man Comes to the Prayer and Finds that the People are in Rukoo’, is He to Say Two Takbeers or Just One?
by The Albaani Site
Questioner: When a man comes to the prayer and finds that the people are in rukoo’, is he to say two takbeers [i.e., saying ‘Allaahu Akbar’]—one for entering the prayer and another for going into rukoo’—or just one?
Al-Albaani: Two.
Al-Hudaa wan-Noor, 428.