Ibn 'Umar (May Allah be pleased with them) reported:
The Prophet (ﷺ) said, "Hasten to perform the Witr prayer before dawn."[Abu Dawud and At-Tirmidhi]. (ES)
App reference (ES): Book 9, Hadith 147 (ES)
Arabic/English book reference (ES): Book 9, Hadith 1137 (ES)