"While the people were with me on the day of ʿArafat they differed as to whether the Prophet ﷺ was fasting or not; some said that he was fasting while others said that he was not fasting. So, I sent to him a bowl full of milk while he was riding over his camel and he drank it."  

أَنَّ نَاسًا تَمَارَوْا عِنْدَهَا يَوْمَ عَرَفَةَ فِي صَوْمِ النَّبِيِّ ﷺ فَقَالَ بَعْضُهُمْ هُوَ صَائِمٌ وَقَالَ بَعْضُهُمْ لَيْسَ بِصَائِمٍ فَأَرْسَلَتْ إِلَيْهِ بِقَدَحِ لَبَنٍ وَهْوَ وَاقِفٌ عَلَى بَعِيرِهِ فَشَرِبَهُ  

The people doubted whether the Prophet ﷺ was fasting on the day of ʿArafat or not, so I sent milk while he was standing at ʿArafat, he drank it and the people were looking at him.  

أَنَّ النَّاسَ شَكُّوا فِي صِيَامِ النَّبِيِّ ﷺ يَوْمَ عَرَفَةَ فَأَرْسَلَتْ إِلَيْهِ بِحِلاَبٍ وَهْوَ وَاقِفٌ فِي الْمَوْقِفِ فَشَرِبَ مِنْهُ وَالنَّاسُ يَنْظُرُونَ