This hadith has been narrated by Ja'far with the same chain of transmitters and he added:

It was said to him (to the Prophet): There are people to whom fasting has become unbearable and they are waiting how you do. He (the Prophet) then called for a cup of water when it was afternoon. The rest of the hadith is the same.

وَحَدَّثَنَاهُ قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا عَبْدُ الْعَزِيزِ، - يَعْنِي الدَّرَاوَرْدِيَّ - عَنْ جَعْفَرٍ، بِهَذَا الإِسْنَادِ وَزَادَ فَقِيلَ لَهُ إِنَّ النَّاسَ قَدْ شَقَّ عَلَيْهِمُ الصِّيَامُ وَإِنَّمَا يَنْظُرُونَ فِيمَا فَعَلْتَ ‏.‏ فَدَعَا بِقَدَحٍ مِنْ مَاءٍ بَعْدَ الْعَصْرِ ‏.‏