Al-Kāfi
Hadith 3424ـ أَحْمَدُ بْنُ مُحَمَّدٍ عَنِ الْحُسَيْنِ بْنِ سَعِيدٍ عَنِ الْحُسَيْنِ بْنِ عُلْوَانَ عَنْ عَمْرِو بْنِ خَالِدٍ عَنْ أَبِي جَعْفَرٍ (عَلَيْهِ السَّلاَم) قَالَ كَانَ رَسُولُ الله (صلَّى اللهُ عَلَيْهِ وَآلِه) يَصُومُ شَعْبَانَ وَرَمَضَانَ يَصِلُهُمَا وَيَنْهَى النَّاسَ أَنْ يَصِلُوهُمَا وَكَانَ يَقُولُ هُمَا شَهْرَا الله وَهُمَا كَفَّارَةٌ لِمَا قَبْلَهُمَا وَلِمَا بَعْدَهُمَا مِنَ الذُّنُوبِ.
4. Ahmad ibn Muhammad has narrated from al-Husayn ibn Sa‘id from al-Husayn ibn ‘Ulwan from ‘Amr ibn Khalid who has said the following: “Abu Ja’far (a.s.), has said, ‘The Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, would fast during the month of Sha‘ban and the month of Ramadan and continue fasting. He (the Messenger of Allah) prohibited people to continue fasting without a break (after sunset). He also said, ‘These two are the months of Allah and this (fasting in the two months) is expiation of the sins before and after these two months.’”