Does one who wants to make his witr at the end of the night complete the witr with the imam by praying four rak'ahs?

Question:
This person says: Your Eminence the Shaykh! Some people, when the imam finishes the witr, perform another rak'ah after the completion, on the pretext that he will make the witr at the end of the night. Please give us a ruling on this action, and may Allah reward you.

Answer:
There is no harm, if Allah wills. If he leaves it, he prays from the end of the night, provided it is facilitated for him to make up the first witr. And if he prays with the imam at the beginning of the night and then comes to pray a rak'ah or a few rak'ahs at the end of the night, there is no harm, if Allah wills. And if he prays with the people and says the taslim with the people, then the witr is sufficient for him. And if he gets up at the end of the night, he prays whatever is facilitated for him: two rak'ahs, four rak'ahs, six rak'ahs, or eight rak'ahs, saying the taslim after each set, and he does not need to pray the witr again, for the first witr was sufficient for him.