Entering a second congregation after the prayer has ended in the mosque

Question:
Your Eminence the Shaykh, the questioner says: If a man enters the mosque and the prayer has already ended, and then another congregation is established in the same mosque, is it better for me to pray with them, or should I go back and pray at home?

Answer:
It is obligatory for you to pray with them. If you arrive and the Prophet (peace and blessings be upon him) has already prayed, and a congregation is available, you must pray with them, because the congregation is obligatory. So if you find someone with whom you can pray, even if it is just one person, you pray with the congregation. When a man entered and the Prophet (peace and blessings be upon him) had already prayed, the Prophet (peace and blessings be upon him) said: , so some of the Companions prayed with him. If you miss the prayer and a congregation is available to you, it is obligatory for you to pray with them, or if there is another mosque where you can pray with a congregation, it is obligatory for you.