Full Sharh — Sahih Muslim 2623
وَحَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا حَفْصٌ، عَنْ عَاصِمٍ الأَحْوَلِ، عَنْ مُوَرِّقٍ، عَنْ أَنَسٍ، - رضى الله عنه - قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم فِي سَفَرٍ فَصَامَ بَعْضٌ وَأَفْطَرَ بَعْضٌ فَتَحَزَّمَ الْمُفْطِرُونَ وَعَمِلُوا وَضَعُفَ الصُّوَّامُ عَنْ بَعْضِ الْعَمَلِ - قَالَ - فَقَالَ فِي ذَلِكَ " ذَهَبَ الْمُفْطِرُونَ الْيَوْمَ بِالأَجْرِ " .
English Translation
Anas (Allah be pleased with him) reported that the Messenger of Allah (ﷺ) was journeying (along with his Companions). Some of them had observed the fast whereas the others had broken it. Those who did not fast girded up their loins and worked, but the observers of the fast were too weak to work. Upon this he (the Messenger of Allah) said:Today the breakers of the fast have gone with the reward
Source
Sahih Muslim(صحيح مسلم)
The Book of Fasting
Hadith Number
2623