 حَدَّثَنَا مُحَمَّدُ بْنُ عَلِیِّ بْنِ مَاجِیلَوَیْهِ قَالَ حَدَّثَنِی عَمِّی مُحَمَّدُ بْنُ أَبِی الْقَاسِمِ عَنْ أَحْمَدَ بْنِ أَبِی عَبْدِ اللَّهِ الْبَرْقِیِّ عَنْ أَبِیهِ مُحَمَّدِ بْنِ خَالِدٍ عَنْ عَبْدِ اللَّهِ بْنِ الْمُغِیرَهِ عَنْ یَزِیدَ بْنِ خَلِیفَهَ قَالَ: قُلْتُ لِأَبِی عَبْدِ اللَّهِ ع إِنَّهُ یَشْتَدُّ عَلَیَّ الصَّوْمُ فِی الْحَرِّ فَأَجِدُ الصُّدَاعَ فَقَالَ اصْنَعْ کَمَا أَصْنَعُ أَنَا إِذَا سَافَرْتُ أَتَصَدَّقُ کُلَّ یَوْمٍ بِمُدٍّ عَلَی أَهْلِیَ الَّذِی أَقُوتُهُمْ بِهِ.
10. It was narrated to us by Muhammad b. Ali b. Majluwayh who said it was narrated to me by my uncle Muhammad b. Abi al-Qasim from Ahmad b. Abi Abdillah al-Barqi from his father Muhammad b. Khalid from Abdillah b. al-Mughira from Yazid b. Khalifa who said: The narrator asked Imam Ja’far Sadiq , “O master! It is difficult for me to fast during summer and my head starts aching.” Imam  replied, “Do what I do. When I go on a journey, for each day I give in Sadaqah one Mudd (750 grams) of food as I give to my family members.”