Sahih Muslim 2107
صحيح مسلم#2107Sahihوَحَدَّثَنِي سَعِيدُ بْنُ يَحْيَى الأُمَوِيُّ، حَدَّثَنِي أَبِي، حَدَّثَنَا ابْنُ جُرَيْجٍ، بِهَذَا الإِسْنَادِ مِثْلَهُ وَقَالَ قِيَامًا طَوِيلاً يَقُومُ ثُمَّ يَرْكَعُ وَزَادَ فَجَعَلْتُ أَنْظُرُ إِلَى الْمَرْأَةِ أَسَنَّ مِنِّي وَإِلَى الأُخْرَى هِيَ أَسْقَمُ مِنِّي .
Abu Juraij narrated this hadith with the same chain of transmitters (but with the addition of these words):" It was for a long duration that he (the Holy Prophet) observed qiyam and he would then observe ruku'. (The narrator also added) I (Asma') looked at a woman who was older than I, and at another who was weaker than I
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: 10:16