The follower who is prevented from prostrating with the imam

Question:
If a person prays behind the imam and bows with him, then the imam stands up and bows until this person is prevented from prostrating by a bone that stops him from prostrating when the imam prostrates, what does he do in this rak'ah? Does he shorten it? And is he able to perform the prostration for forgetfulness?

Answer:
If the obstacle is removed from him, he follows, completes the prostration, and follows the imam, and his prayer is valid, if Allah wills. If the obstacle is removed from him, he prostrates, even if it is after the imam, and he catches up with the imam, because he did not lag behind the imam except due to an excuse, not that he intentionally lagged behind. That is, he performs the prostration, even if it is after the imam, and follows the imam in his prayer. His prayer is valid, if Allah wills. As for if he leaves the prostration and does not prostrate, he follows the imam in the rest, so he has to perform a complete rak'ah. When the imam says the taslim, he performs a complete rak'ah. Yes.