Is it better for one who joins the last rak'ah to pray with the imam or to pray alone after the congregation?

The questioner : The second question: A man entered the mosque and found that the imam had already risen from the bowing of the last rak'ah of the prayer. Does he join the imam for what remains, or does he start the prayer anew, whether he is with others or alone?

The Shaykh : If he is alone, let him join the imam, even if it is only for the final tashahhud. But if he is with others, it is better that they pray alone as a congregation from the beginning of the prayer.

The questioner : Even if the Shaykh has already said the taslim.

The Shaykh : However, if the mosque is spacious and they pray in a corner of it without disturbing the other worshippers, there is no harm in their praying before the imam says the taslim. Otherwise, let them wait until the imam says the taslim.

The presenter : May Allah keep you safe.