Is it permissible for one who has prayed the obligatory prayer in congregation to follow a latecomer in prayer?

The questioner : In a second question, may Allah prolong your life, a man entered for the Maghrib prayer, but the congregation had already finished praying. He prayed with the latecomers, and after they finished, he found a person who had just arrived at the mosque. He asked him, "Did you pray?" He said, "No." So he prayed with him again, leading him, as I am the imam of the mosque. I asked him, "Why did you do this?" He said, "This is my custom from long ago; if someone arrives, it is better for him to pray. In fact, I would rather be the imam for him." Is this action of his prescribed or not? May Allah reward you with good.

The Shaykh : Yes, this is prescribed, because a man entered while the Prophet (peace and blessings be upon him) was sitting with his companions, and the Prophet (peace and blessings be upon him) said, "Who will give charity to this man by praying with him?" .

The presenter : But there is no harm in him being the imam.

The Shaykh : There is no harm in him being the imam according to the stronger position, because the stronger position is that there is no harm in the one who is obligated to pray following the one who is praying a voluntary prayer. Mu'adh ibn Jabal (may Allah be pleased with him) used to pray the 'Isha' prayer with the Prophet (peace and blessings be upon him). Then he would go out to his people and pray with them as imam, the same prayer. It was a voluntary prayer for him and an obligatory prayer for them.

The presenter : May Allah reward you with good, may Allah reward you.

The Shaykh : And to you.

The presenter : May Islam and the Muslims benefit from you.

The Shaykh : Amen, may Allah reward you with good.

The presenter : May Allah reward you with good, in the safety of Allah.

The Shaykh : In the safety of Allah.

The presenter : May Allah reward you with good.