Al-Kāfi
Hadith 5153ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ مُحَمَّدِ بْنِ خَالِدٍ عَنْ سَعْدِ بْنِ سَعْدٍ الأَشْعَرِيِّ عَنْ أَبِي الْحَسَنِ الرِّضَا (عَلَيْهِ السَّلاَم) قَالَ سَأَلْتُهُ عَنْ صَوْمِ ثَلاثَةِ أَيَّامٍ فِي الشَّهْرِ هَلْ فِيهِ قَضَاءٌ عَلَى الْمُسَافِرِ قَالَ لا.
3. A number of our people have narrated from Ahmad ibn Muhammad from Muhammad ibn Khalid from Sa‘d ibn Sa‘d al-Ash’ariy who has said the following: “I once asked al-Rida’ (a.s.), about the case of the three days’ fasting every month, if Qada’ (compensatory fast) is required from a traveler. He (the Imam) said, ‘No, he is not required to fast.’”