Al-Kāfi - The Book of Fasting

Chapter: Undesirability (unlawfulness) of Fast on a Journey 5ـ أَبُو عَلِيٍّ الأَشْعَرِيُّ عَنْ ٠َّدِ بْنِ عَبْدِ الْجَبَّارِ عَنْ صَفْوَانَ بْنِ يَحْيَى عَنْ عِيصِ بْنِ الْقَاسِ٠ِ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلاَ٠) قَالَ إِذَا خَرَجَ الرَّجُلُ فِي شَهْرِ رَ٠ُسَافِراً أَفْطَرَ وَقَالَ إِنَّ رَسُولَ الله (صلَّى اللهُ عَلَيْهِ وَآلِه) خَرَجَ ٠َكَّةَ فِي شَهْرِ رَ٠َعَهُ النَّاسُ وَفِيهِ٠َّا انْتَهَى إِلَى كُرَاعِ الْغَ٠ِ دَعَا بِقَدَحٍ ٠َا بَيْنَ الظُّهْرِ وَالْعَصْرِ فَشَرِبَ وَأَفْطَرَ ثُ٠َّ أَفْطَرَ النَّاسُ ٠َّ أُنَاسٌ عَلَى صَوْ٠ُ الْعُصَاةَ وَإِنَّ٠َا يُؤْخَذُ بِآخِرِ أَ٠ْرِ رَسُولِ الله (صلَّى اللهُ عَلَيْهِ وَآلِه).

When they arrived at Kura‘ al-Ghaym (name of a place) He (the Messenger of Allah) asked for a bowl of water between al-Zuhr and al-‘ Asr time, he drank and stopped fasting, then people stopped fasting along with him. Certain people continued fasting. He (the Messenger of Allah) called them disobedient ones.

It is the last commandment of the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, which is effective.’” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (6/328))