Turning the Intention in to a Mustaḥab Prayer to Join a Congregational Prayer
Issue No. 1264- If a congregational prayer is established while a person is offering an obligatory prayer, in case he has not begun the third rak‘at and fears that if he completes the prayer, he will not be able to join the congregation, it is mustaḥab that he turns his intention into mustaḥab prayer and completes the prayer in two rak‘ats, and then joins the congregational prayer.