The Imam Standing for a Fifth Rak'ah and the Position of the Ma'mum Who Knows It Is an Addition
Machine translationRead the Arabic original
Question:
If I pray a four-rak'ah prayer behind the imam, and in the last rak'ah he stands up and adds a fifth, and I know that he has added a rak'ah, is it obligatory for me to sit in the fourth, or should I complete the prayer with him?
Answer:
No, if you know that it is an addition, it is not permissible for you to stand up with him. If you stand up while knowing that it is an addition, your prayer becomes invalid; because you have intentionally added to the prayer. As for if you do not know, then you are excused. Yes. He says.
If I pray a four-rak'ah prayer behind the imam, and in the last rak'ah he stands up and adds a fifth, and I know that he has added a rak'ah, is it obligatory for me to sit in the fourth, or should I complete the prayer with him?
Answer:
No, if you know that it is an addition, it is not permissible for you to stand up with him. If you stand up while knowing that it is an addition, your prayer becomes invalid; because you have intentionally added to the prayer. As for if you do not know, then you are excused. Yes. He says.
Source
المنتقى من أخبار سيد المرسلين 28-12-1434هـ — af.org.sa (43:11)
The Arabic text is a machine transcription of the audio recording.