Al-Kāfi
Hadith 5094ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنْ عُمَرَ بْنِ حَفْصٍ عَنْ سَعِيدِ بْنِ يَسَارٍ قَالَ سَأَلْتُ أَبَا عَبْدِ الله (عَلَيْهِ السَّلاَم) عَنِ الرَّجُلِ يُشَيِّعُ أَخَاهُ فِي شَهْرِ رَمَضَانَ فَيَبْلُغُ مَسِيرَةَ يَوْمٍ أَوْ مَعَ رَجُلٍ مِنْ إِخْوَانِهِ أَ يُفْطِرُ أَوْ يَصُومُ قَالَ يُفْطِرُ.
4. A number of our people have narrated from Ahmad ibn Muhammad from Ali ibn al-Hakam from Hafs ibn Sa‘id ibn Yasar who has said the following: “I once asked abu ‘Abd Allah (a.s.), about a man who escorts his brother in the month of Ramadan until he travels the distance of one day’s journey or with a man from his brothers if he is required to fast. He (the Imam) said, ‘He is required to stop fasting.’”