How to Pray When Crowded in the Friday Prayer

Question:
We ask for clarification on the issue of the prayer of the one who is crowded out in the Friday prayer, as mentioned in the book al-Udha' Sharh al-Umdah, and may Allah reward you with good.

Answer:
If a person is crowded out after he has prayed one rak'ah, he completes his prayer himself; he comes in for the second rak'ah and completes his prayer himself. If he is crowded out before he has completed a rak'ah, he has not caught the Friday prayer, if it was not possible for him to bow with the imam and continue with the imam, then he has not caught it. As for if he is crowded out after he has prayed one rak'ah, or if the imam came and prayed one rak'ah, and he prayed one rak'ah with the imam, then he was crowded out and prayed the two rak'ahs alone, that does not harm him. The point is that if he catches a rak'ah with the imam, whether in the first or the second, he has caught the Friday prayer, and he completes it as Friday prayer. And if he prays the Zuhr prayer in a mosque between that and the Friday prayer, like the masbuq (one who joins the prayer late).