Sahih Muslim 1708
صحيح مسلم#1708Sahihوَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا يَزِيدُ بْنُ زُرَيْعٍ، عَنْ سَعِيدٍ الْجُرَيْرِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ شَقِيقٍ، قَالَ قُلْتُ لِعَائِشَةَ هَلْ كَانَ النَّبِيُّ صلى الله عليه وسلم يُصَلِّي وَهُوَ قَاعِدٌ قَالَتْ نَعَمْ بَعْدَ مَا حَطَمَهُ النَّاسُ .
Abdullah b. Shaqiq reported:I asked 'A'isha whether the Messenger of Allah (ﷺ) observed (Nafl) sitting. She said: Yes, when the people had made him old
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 6:138