Hadithcore
Hadith #2108150

In another narration, ‘He was told that people are finding it difficult to fast (during the journey) and they are waiting to see what the Prophet (ﷺ) will do. So he called for a cup of water after the Asr (afternoon) prayer and drank it.’ Related by Muslim.

وَفِي لَفْظٍ: { فَقِيلَ لَهُ: إِنَّ اَلنَّاسَ قَدْ شَقَّ عَلَيْهِمُ اَلصِّيَامُ, وَإِنَّمَا يَنْظُرُونَ فِيمَا فَعَلْتَ، فَدَعَا بِقَدَحٍ مِنْ مَاءٍ بَعْدَ اَلْعَصْرِ، فَشَرِبَ } رَوَاهُ مُسْلِمٌ [1]‏ .‏

References2 variants
Sunnah.com reference
Book 5, Hadith 24
Arabic/English book reference
Book 5, Hadith 694