Sahih Muslim 2635
صحيح مسلم#2635Sahihوَحَدَّثَنِي هَارُونُ بْنُ سَعِيدٍ الأَيْلِيُّ، حَدَّثَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي عَمْرٌو، أَنَّ أَبَا النَّضْرِ، حَدَّثَهُ أَنَّ عُمَيْرًا مَوْلَى ابْنِ عَبَّاسٍ - رضى الله عنهما - حَدَّثَهُ أَنَّهُ، سَمِعَ أُمَّ الْفَضْلِ، - رضى الله عنها - تَقُولُ شَكَّ نَاسٌ مِنْ أَصْحَابِ رَسُولِ اللَّهِ صلى الله عليه وسلم فِي صِيَامِ يَوْمِ عَرَفَةَ وَنَحْنُ بِهَا مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم فَأَرْسَلْتُ إِلَيْهِ بِقَعْبٍ فِيهِ لَبَنٌ وَهُوَ بِعَرَفَةَ فَشَرِبَهُ .
Umm al-Fadl (Allah be pleased with her) is reported to have said that some people among the Companions of the Messenger of Allah (ﷺ) were in doubt about fasting on the day of 'Arafa and we were with him on that day. I (Umm al-Fadl) sent him a cup of milk and he was halting at 'Arafa, and he drank that
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: 13:141