What is the nature of the Witr prayer, its time, and the number of its rak'ahs?

The question: His fourth question says: What is the Witr prayer, when is its time, how many rak'ahs does it have, and how is it performed?
The answer: The Witr prayer is a recommended practice (sunnah) that is strongly emphasized. It begins after the 'Isha' prayer and ends with the dawn. This is the Witr prayer; it begins after the 'Isha' prayer and ends with the dawn. Its minimum is one rak'ah; this is its minimum. Its best form is eleven rak'ahs or thirteen rak'ahs, based on the action of the Prophet (peace and blessings be upon him). If one increases beyond that, he may perform Witr with fifteen or twenty, along with the Witr, or something similar, and there is no harm in that; there is no blame on him. This is because the Prophet (peace and blessings be upon him) said: and he did not set a limit. This indicates that if one performs Witr with five, seven, nine, eleven, thirteen, fifteen, seventeen, nineteen, twenty-one, or twenty-three, all of it is good, or more than that, or if he performs Witr with just one, that suffices for him. This is clear from the Sunnah of the Prophet (peace and blessings be upon him). Yes.
The presenter: He also asks: What is its connection to the Shaf' (even-numbered prayer)?
The Shaykh: The Shaf' is sometimes separate from it, and that is better. Sometimes it is a continuous Witr: five all together, seven all together, nine all together, and there is no harm in that, as the Prophet (peace and blessings be upon him) did so. However, if one prays seven all together, he sits in the sixth, recites the first tashahhud, then stands and performs the seventh. If he prays nine all together, the recommended practice (sunnah) is that he sits in the eighth, recites the first tashahhud, then stands and performs the ninth. The best is to say the taslim after every two rak'ahs; this is the best, based on the saying of the Prophet (peace and blessings be upon him): This is the best. If one recites five all together and performs Witr with them, or three all together and performs Witr with them, reciting them continuously without sitting—three all together without sitting in the second, or five all together without sitting in any of them except the last—this is the best. As for seven and nine, he sits in the sixth for the seven, and in the eighth for the nine, for the first tashahhud, then stands and performs the seventh and the ninth. But the best, as mentioned earlier, is to say the taslim after every two, then perform Witr with one, whether he prays seven, five, three, nine, eleven, thirteen, or more than that. Yes, and the matter is broad in this, praise be to Allah; there is no harm in it.
The presenter: May Allah reward you.