The time of the shaf' and witr prayers in the night prayer

Question:
This questioner says: I ask you, Shaykh, about the shaf' and witr prayers. Is it permissible for me to pray them when I get up for the night prayer, that is, the shaf' and witr? Are they in the first part of the night or the last part?

Answer:
In the last third of the night, so the entire night is a place for the witr. If you have a share of the night prayer, even if it is small, you get up and pray, and you conclude it with the witr. This is the sunnah (recommended practice), yes.