ENOfficial
‘A’isha said that during the whole night God’s Messenger observed, a witr at the beginning, middle and end, his witr finishing at dawn. (Bukhari and Muslim.)
Source: sunnah.com
Other translations
Arabic
وَعَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ: مِنْ كُلَّ اللَّيْلِ أَوْتَرَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مِنْ أَوَّلِ اللَّيْلِ وَأَوْسَطِهِ وَآخِرِهِ وَانْتَهَى وَتْرُهُ إِلَى السَّحَرِ
sunnah.com