Conveying the Takbir Behind the Imam

Question:
He has another question in which he asks: What is the ruling on conveying the takbir to the imam in the prayer behind him with a loud voice?
Given that everyone hears the imam’s takbir and his praise of Allah.

Answer:
If the congregation hears the imam’s voice and it is not hidden from them, then there is no need for conveying the takbir.
However, if it might be hidden from some of them, such as the rear rows, then it is recommended to convey the takbir. The Prophet (peace and blessings be upon him) once prayed one day while ill (peace and blessings be upon him), and his voice was weak, and al-Ṣiddiq conveyed the takbir on his behalf (peace and blessings be upon him). So there is nothing wrong with this if conveying the takbir is needed due to the spaciousness of the mosque, the large number of the congregation, or the imam’s voice being distant due to illness or otherwise; in that case, some of the congregation stand to convey the takbir.
But if the voice is clear and everyone hears it, and it is not hidden from anyone at the edges, rather... it is a known fact that everyone hears it, then there is no need for conveying the takbir, and conveying the takbir is not prescribed. Yes.