[Machine] From more than one companion of Abdullah, it was narrated that Ibn Mas'ood used to say, "If one of you prays Witr and then falls asleep, and then he wakes up, he should nullify his Witr and pray another Rak'ah, and then pray Witr afterwards."
عَنْ غَيْرِ وَاحِدٍ مِنْ أَصْحَابِ عَبْدِ اللهِ أَنَّ ابْنَ مَسْعُودٍ كَانَ يَقُولُ «إِذَا أَوْتَرَ أَحَدُكُمْ ثُمَّ نَامَ فَقَامَ فَلْيَنْقُضْ وِتْرَهُ وَلْيُصَلِّ إِلَيْهَا رَكْعَةً أُخْرَى ثُمَّ لْيُوتِرْ بَعْدَ ذَلِكَ»