If a worshiper enters while the imam is bowing, does he bow immediately or first join the row?

Question:
He says: Honorable Shaykh, may Allah grant you success, if a worshiper enters the mosque while the imam is bowing, does he bow with him immediately, or does he reach the row and then bow after that?

Answer:
He must reach the row and then bow once he has reached it, because the Prophet (peace and blessings be upon him) forbade Abu Bakrah when he said the takbir before the row and then crept forward while bowing to join the row. The Messenger (peace and blessings be upon him) forbade him and said to him, “May Allah increase you in zeal, and do not do it again.” Yes.