Is it permissible for one of the latecomers who are residents to step forward and lead the congregation if a traveling imam has prayed with them?

Question:
May Allah keep you safe, Honorable Shaykh. This questioner says: A man who is traveling led a group of residents in the midday prayer, then he said the closing salam after two units. Is it permissible for one of them to step forward and lead the congregation in the last two units, or do they pray individually, each making up the remaining two units?

Answer:
If each person leads himself, and the Prophet (peace and blessings be upon him), when he prayed and the people of Makkah were behind him in the Farewell Pilgrimage, he prayed with them in the Sacred Precinct, saying: “O people of Makkah, we are a people who have shortened the prayer, so complete your prayer today with your own guidance.” When the Prophet (peace and blessings be upon him) said the closing salam, they stood up and said, “We are free of this,” and they did not appoint an imam from among them. Rather, each person completed the prayer for himself. It is not mentioned that they appointed an imam; rather, each person completed the prayer for himself, becoming like…