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]. (DE)
App reference (DE): Book 9, Hadith 147 (DE)
Arabic/English book reference (DE): Book 9, Hadith 1137 (DE)