Hadith 162

Sahih Muslim

Book 6: The Book of Prayer - Travellers

Chapter 17

Night prayers and the number of rak`ah offered by the Prophet (saws) at night, and that Witr is one rak`ah, and a one-rak`ah prayer is correct

باب صَلاَةِ اللَّيْلِ وَعَدَدِ رَكَعَاتِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي اللَّيْلِ وَأَنَّ الْوِتْرَ رَكْعَةٌ وَأَنَّ الرَّكْعَةَ صَلاَةٌ صَحِيحَةٌ

Sahih Muslim 743b
وَحَدَّثَنَا ابْنُ أَبِي عُمَرَ، حَدَّثَنَا سُفْيَانُ، عَنْ زِيَادِ بْنِ سَعْدٍ، عَنِ ابْنِ أَبِي عَتَّابٍ، عَنْ أَبِي سَلَمَةَ، عَنْ عَائِشَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم مِثْلَهُ ‏.‏
A hadith like this has been narrated by 'A'isha by another chain of transmitters.