The one who prostrated in the final prostration with the imam and still has the tashahhud remaining
Machine translationRead the Arabic original
The questioner:
He says: Honorable Shaykh.
The Shaykh:
Do you have a question for me?
The questioner:
He says, may Allah preserve you: A man prostrated with the imam in the final prostration of the last rak'ah.
The Shaykh:
Yes, as long as he prostrated in the final prostration, the final tashahhud and sitting remain for him. He stands up from the final prostration, and even if the imam has already said the taslim, he stands up, performs the final tashahhud, and then says the taslim.
He says: Honorable Shaykh.
The Shaykh:
Do you have a question for me?
The questioner:
He says, may Allah preserve you: A man prostrated with the imam in the final prostration of the last rak'ah.
The Shaykh:
Yes, as long as he prostrated in the final prostration, the final tashahhud and sitting remain for him. He stands up from the final prostration, and even if the imam has already said the taslim, he stands up, performs the final tashahhud, and then says the taslim.
Source
شرح كتاب المنتقى من أخبار المصطفى صلى الله عليه وسلم، بداية من باب ما يقول إذا فرغ من وضوئه — islamhouse.com (1:03:39)
The Arabic text is a machine transcription of the audio recording.