Why is the Witr prayer made up if a person misses it, even though it is a voluntary prayer, and does this apply to the other voluntary prayers?

Question:
You always say, listen, that whoever misses the Witr of the night makes it up in the Duha time, and the Messenger of Allah (peace and blessings be upon him) said, "Whoever among you is in the morning and has not prayed Witr, let him pray Witr." Why is the Witr prayer made up if a person misses it, even though it is a voluntary prayer? What is the importance of the odd number and the even number? Does this apply to the rest of the voluntary prayers?

Answer:
As for what you attributed to the Messenger of Allah (peace and blessings be upon him), saying that whoever misses the Witr should pray it, I do not know of this at all. This questioner mentioned things she attributed to the Messenger in every question. May Allah have mercy on her. It is obligatory for a person to attribute to the Messenger only what he is certain is authentic, and that it be in the well-known books of authentic hadith. As for whoever misses the Witr at night, he makes it up during the day, between the rising of the sun and its zenith. He makes it up, but he makes it an even number. So if he used to pray Witr with three rak'ahs at night, he prays them as four rak'ahs with two taslims. And if he used to pray Witr with five rak'ahs, he prays them as six rak'ahs with a taslim after every two rak'ahs, and so on. This is the Sunnah. Yes.