It was narrated that Jabir bin Abdullah said: "The Messenger of Allah ﷺ SAW said to Abu Bakr (RA) : When do you pray Witr? He said: At the beginning of the night, after Isha. He said: And you, O Umar? He said: At the end of the night. The Prophet ﷺ SAW said: As for you, O Abu Bakr, you have seized the trustworthy handhold (i.e., you want to be on the safe side), and as for you, O Umar, you have seized strength (i.e., you are confident that you have the resolve to get up and pray Witr). (Hasan).