One who prostrated with the imam and did not hear his taslim before the tashahhud

Question:
He says: Honorable Shaykh, may Allah grant you success. A man prayed with the imam and prostrated with him in the final prostration, but he did not hear him rise from the prostration until the imam had already said the taslim. He finished the final tashahhud, and the imam said the taslim while he was still prostrating; he did not hear it except at the moment of the taslim. What is the ruling on his prayer?

Answer:
The ruling is that he should stand up, perform the final tashahhud, and say the taslim after the imam. There is no harm in being delayed behind the imam. He should complete his prayer, even if it means being delayed behind the imam; there is no harm in that. He should not say the taslim with him. If he did not sit for the final tashahhud or did not perform the final tashahhud, he is missing one pillar or two pillars. Yes.