The ruling on the prostration for forgetfulness for one who stands to complete his prayer
Machine translationRead the Arabic original
Question:
He says: I entered the mosque and had missed two units of prayer. When the imam finished the prayer, I stood up until I was upright, and while I was in that state, the imam performed the prostration for forgetfulness. Do I complete the prayer or do I prostrate with him?
Answer:
If you stand up to make up what you missed, and the imam prostrates after you have stood up, do not go back. However, if the imam prostrates before you stand up, it is obligatory for you to prostrate with him. Yes.
He says: I entered the mosque and had missed two units of prayer. When the imam finished the prayer, I stood up until I was upright, and while I was in that state, the imam performed the prostration for forgetfulness. Do I complete the prayer or do I prostrate with him?
Answer:
If you stand up to make up what you missed, and the imam prostrates after you have stood up, do not go back. However, if the imam prostrates before you stand up, it is obligatory for you to prostrate with him. Yes.
Source
نور على الدرب - الفوزان - 03/235 — archive.org (12:44)
The Arabic text is a machine transcription of the audio recording.