٩- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ مَحْبُوبٍ عَنْ أَبِي أَيُّوبَ عَنْ سَمَاعَةَ قَالَ سَأَلْتُ أَبَا عَبْدِ اللهِ (عَلَيْهِ السَّلام) عَنْ رَجُلٍ أَصَابَ مَالا مِنْ عَمَلِ بَنِي أُمَيَّةَ وَهُوَ يَتَصَدَّقُ مِنْهُ وَيَصِلُ مِنْهُ قَرَابَتَهُ وَيَحُجُّ لِيُغْفَرَ لَهُ مَا اكْتَسَبَ وَهُوَ يَقُولُ إِنَّ الْحَسَناتِ يُذْهِبْنَ السَّيِّئاتِ فَقَالَ أَبُو عَبْدِ اللهِ (عَلَيْهِ السَّلام) إِنَّ الْخَطِيئَةَ لا تُكَفِّرُ الْخَطِيئَةَ وَلَكِنَّ الْحَسَنَةَ تَحُطُّ الْخَطِيئَةَ ثُمَّ قَالَ إِنْ كَانَ خَلَطَ الْحَلالَ بِالْحَرَامِ فَاخْتَلَطَا جَمِيعاً فَلا يَعْرِفُ الْحَلالَ مِنَ الْحَرَامِ فَلا بَأْسَ.
9. A number of our people have narrated from Ahmad ibn Muhammad from ibn Mahbub from abu Ayyub from Sama‘ah who has said the following: “This is concerning my question before abu ‘ Abd Allah , about the case of a man who had found a certain amount of property from banu ’Umayyah. He gives charity thereof, helps his relatives, performs al-Hajj therewith, so that Allah may forgive what he has earned and says, ’Good deeds remove bad deeds.’ Abu ‘Abd Allah , said, ’Sins do not expiate sins. Only good deeds remove sins.’ He (the Imam) then said, ’If he has mixed lawful with unlawful and is not able to distinguish, then it is not harmful.’” 