his father said: I heard Allah's Messenger saying: "There are no two Witr in one night."
Jami` at-Tirmidhi Book 3, Hadith 18
← Previous Hadith Allah's Messenger said: "When Fajr begins, then every Salat of the night and Al-Witr have gone, so perform Al-Witr before Fajr begins."

Jami` at-Tirmidhi Book 3, Hadith 17 Next Hadith → "The Prophet would pray two Rak'ah after Al-Witr."

Jami` at-Tirmidhi Book 3, Hadith 19