The ruling on combining the shaf' and the witr, and the difference between tarawih, witr, and tahajjud

Question:
Honorable Shaykh, he says: Is it permissible to combine the shaf' and the witr with two tashahhuds and one taslim? And what is the difference between the tarawih prayer, the witr prayer, and the tahajjud prayer?

Answer:
No, you do not combine them with two tashahhuds. It is permissible to combine the shaf' and the witr with one taslim, but you do not sit for the first tashahhud. Do not make it resemble the Maghrib prayer. The Prophet (peace and blessings be upon him) forbade making the witr resemble the Maghrib prayer. You make it so that there is only one tashahhud at the time of the taslim. You recite the rak'ahs in succession and sit for the final sitting, the final tashahhud, and then you say the taslim. This is permissible. No, and separating the shaf' from the witr is better. You pray two rak'ahs as shaf', you sit and recite the tashahhud and say the taslim, then you stand up and perform the witr rak'ah, you sit for the tashahhud and say the taslim. This is better and more correct. As for combining the shaf' and the witr with two tashahhuds, this is forbidden because it resembles the Maghrib prayer. This is the shaf' and the wasilah. The second question? And what is the difference between the three? Ameen. My daughters, my eyes. In the tarawih prayer, one says the taslim after every two rak'ahs. He (peace and blessings be upon him) said: As for the witr, as you have heard, it is permissible to combine the witr with one taslim, and it is permissible to make it with two taslims. This is the difference between them. Tahajjud is like tarawih, two rak'ahs, two rak'ahs, but the tahajjud is longer than the tarawih prayer. The righteous Salaf used to lengthen the tahajjud greatly. They used to recite hundreds of verses of the Qur'an in a single rak'ah. They sometimes leaned on their hands due to the length of standing. They used to tie ropes between the pillars and hold onto them due to the length of standing behind the imam. They did not leave until the dawn due to the length of standing. They spent the night praying, performing tahajjud. So in the tahajjud, the standing, recitation, bowing, and prostration are lengthened, unlike the tarawih, which is lightened out of consideration for the people. And the tahajjud is only in the last ten nights of Ramadan, whereas in the first twenty nights, you pray only the tarawih.