Chapter on Oaths, Vows, and Expiations
Man Lā Yaḥḍuruh al-Faqīh|Volume 3|Book 2|Chapter 38
وَ كَتَبَ مُحَمَّدُ بْنُ اَلْحَسَنِ اَلصَّفَّارُ رَضِيَ اَللَّهُ عَنْهُ إِلَى أَبِي مُحَمَّدٍ اَلْحَسَنِ بْنِ عَلِيٍّ عَلَيْهِ اَلسَّلاَمُ: رَجُلٌ حَلَفَ بِالْبَرَاءَةِ مِنَ اَللَّهِ عَزَّ وَ جَلَّ أَوْ مِنْ رَسُولِ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ فَحَنِثَ مَا تَوْبَتُهُ وَ مَا كَفَّارَتُهُ فَوَقَّعَ عَلَيْهِ اَلسَّلاَمُ "يُطْعِمُ عَشَرَةَ مَسَاكِينَ لِكُلِّ مِسْكِينٍ مُدٌّ وَ يَسْتَغْفِرُ اَللَّهَ عَزَّ وَ جَلَّ".
Muhammad ibn al-Hasan al-Saffar, may Allah سبحانه وتعالى be pleased with him, wrote to Abu Muhammad al-Hasan ibn Ali عليه السلام asking about a man who swore an oath of disassociation from Allah سبحانه وتعالى, the Almighty and Glorious, or from the Messenger of Allah سبحانه وتعالى (peace be upon him and his family) and then broke his oath. What is his repentance and expiation? Imam عليه السلام responded: "He should feed ten needy people, giving each needy person one mudd of food, and seek forgiveness from Allah سبحانه وتعالى, the Almighty and Glorious."
- Ṣaḥīḥ al-Faqīh, p. 267