What is the ruling on one who adds a rak'ah after his imam's witr to make his prayer even?

Question : The questioner asks: What should the one praying do if he wants to pray tarawih and qiyam al-layl regarding the witr? And what is the meaning of the hadith "There are not two witr in one night"? And if he stands and adds a rak'ah in one of the two prayers, can it not be said in this case that he entered the prayer without the imam's intention, and spoke in the prayer with extra words, namely the saying of "Ameen"? Please inform us, may Allah reward you.

Answer : If a person wants to pray with the first and second imam in this mosque, the Sacred Mosque, he will be forced to have two witr in one night, and there are not two witr in one night. But the way to get out of this is to make the first witr even, meaning that when the imam says the taslim in the first witr, he stands and adds a rak'ah, so that the witr becomes even, then he prays witr with the last imam, based on the saying of the Prophet (peace and blessings be upon him) This is not considered a violation, because his saying "Ameen" to the imam's supplication in the first rak'ah of his evening does not harm. It is also not said that this man did not stand with the imam until he left, as those with limited understanding understood it, and they said that if he stands and adds the rak'ah that made the imam's witr even, he did not leave with the imam. Rather, we say that he left with the imam, and even exceeded the imam. The Prophet (peace and blessings be upon him) did not say "and left with the imam," but rather said "whoever stands with the imam until he leaves." And this man stood with him until he left, and his adding the rak'ah that made the imam's witr even is not considered an error.