Sunan an Nasai 2283
The Book of Fasting
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا أَبُو مُعَاوِيَةَ، قَالَ حَدَّثَنَا عَاصِمٌ الأَحْوَلُ، عَنْ مُوَرِّقٍ الْعِجْلِيِّ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ كُنَّا مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم فِي السَّفَرِ فَمِنَّا الصَّائِمُ وَمِنَّا الْمُفْطِرُ فَنَزَلْنَا فِي يَوْمٍ حَارٍّ وَاتَّخَذْنَا ظِلاَلاً فَسَقَطَ الصُّوَّامُ وَقَامَ الْمُفْطِرُونَ فَسَقَوُا الرِّكَابَ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " ذَهَبَ الْمُفْطِرُونَ الْيَوْمَ بِالأَجْرِ " .
It was narrated that Anas bin Malik said:"We were with the Messenger of Allah on a journey, and some of us were fasting and some of us were not. We made a stop on a hot day and looked for shade. Those who were fasting fell to the ground, but those who were not fasting got up and watered the animals. The Messenger of Allah said: 'Those who were not fasting today have taken the reward
Grading: Abu Ghuddah: Sahih · Al-Albani: Sahih · Zubair Ali Zai: Sahih - Agreed Upon
Text from the public-domain hadith-api dataset. Numbering follows that dataset and can differ by a few from some printed editions — check the wording, not only the number.