Sahih Muslim 1736
صحيح مسلم#1736Sahihوَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ أَبِي يَعْفُورٍ، - وَاسْمُهُ وَاقِدٌ وَلَقَبُهُ وَقْدَانُ - ح وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَ أَبُو كُرَيْبٍ قَالاَ حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، كِلاَهُمَا عَنْ مُسْلِمٍ، عَنْ مَسْرُوقٍ، عَنْ عَائِشَةَ، قَالَتْ مِنْ كُلِّ اللَّيْلِ قَدْ أَوْتَرَ رَسُولُ اللَّهِ صلى الله عليه وسلم فَانْتَهَى وِتْرُهُ إِلَى السَّحَرِ .
A'isha reported:The Messenger of Allah (ﷺ) observed the Witr prayer every night and he completed Witr at the time of dawn
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 6:165