question #3 Sahih Muslim 754a, Book 6, Hadith 193 : How did the companions of the Prophet (ﷺ) seek guidance on performing the Witr prayer?

Observe Witr prayer before it is morning. Abu Sa’id reported that they (the Prophet’s Companions) asked the Messenger of Allah (ﷺ) about Witr (prayer). (In reply to their inquiry) he said: Observe Witr prayer before it is morning.