If one prays Maghrib and then repeats it with another imam, does he make his prayer even by adding a rak'ah?

Question : He says: Some scholars mentioned that the one who prays the extra prayer after Maghrib, then attends the mosque and the iqamah is called for the prayer, that he prays with them and stands up and performs the fourth rak'ah to make his prayer even, based on the fact that voluntary prayer with witr is not permissible. What is your opinion?

Answer : The answer: Our view is that he says the taslim with them, and there is no harm, because this is not an independent prayer, but rather it is a repeated Maghrib prayer following this mosque in which the Prophet (peace and blessings be upon him) prayed. Khalid. This one says: This is in the case of doubt, if he prayed five while in a state of shubhan in the prayer, whereas this one prays three following his imam. He says, for example: I prayed Maghrib in my mosque, and I came, and I came to this mosque, and they had not yet called the iqamah, so they called the iqamah for Maghrib and I prayed Maghrib. Do I come after the imam's taslim with a rak'ah to make it four, or do I say the taslim with the imam? So we said: He says the taslim with the imam, because this is not an independent prayer, but rather it is a repeated prayer following the imam, so you pray as your imam prayed.