If I and a group of the ma'mum (those praying behind the imam) did not hear the takbir (saying Allahu akbar) of entering the prayer, but then we followed the imam, is our prayer valid?

Question:
He says: If I and a group of the ma'mum did not hear the takbir of entering the prayer, but then we followed the imam, is our prayer valid?

Answer:
If you entered with the intention and said the takbir of entering the prayer, your prayer is valid, even if you did not hear the imam's takbir. That is, if you did not hear it at first, and then you realized that he had entered the prayer, and then you said the takbir of entering the prayer and entered the prayer, your prayer is valid. However, if you missed part of the prayer, such as a rak'ah (a unit of prayer) or more, then when the imam says the taslim (the closing salam of prayer), you stand up and recite what you missed. But if you said the takbir in the first rak'ah and you caught the ruku' (the bowing of prayer) in the first rak'ah, your prayer is valid and complete, if Allah wills. Yes.