Witr is a rak'ah at the end of the night prayer.
Sahih Muslim Book 6, Hadith 187
← Previous Hadith Witr is a rak'ah at the end of the prayer.

Sahih Muslim Book 6, Hadith 186 Next Hadith → I asked Ibn 'Abbas about the Witr prayer. He said: I heard the Messenger of Allah (ﷺ) as saying: It is a rak'ah at the end of the night prayer.

Sahih Muslim Book 6, Hadith 188