Al-Kāfi

Hadith 1452
repentancemajor-sins
2ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ عَلِيِّ بْنِ حَسَّانَ عَنْ مُوسَى بْنِ بَكْرٍ عَنْ رَجُلٍ قَالَ قَالَ أَبُو جَعْفَرٍ (عَلَيهِ السَّلام) الَّذِينَ خَلَطُوا عَمَلاً صالِحاً وَآخَرَ سَيِّئاً فَأُولَئِكَ قَوْمٌ مُؤْمِنُونَ يُحْدِثُونَ فِي إِيمَانِهِمْ مِنَ الذُّنُوبِ الَّتِي يَعِيبُهَا الْمُؤْمِنُونَ وَيَكْرَهُونَهَا فَأُولَئِكَ عَسَى الله أَنْ يَتُوبَ عَلَيْهِمْ.
2. A number of our people have narrated from Sahl ibn Ziyad from Ali ibn Hassan from Musa ibn Bakr from a man who has said the following: “Once abu Ja’far (a.s.) said, ‘Those who have mixed good deeds with bad deeds’ are a believing people. They create in their belief such things, due to sins, that believing people censure and dislike. They are as such that perhaps Allah may accept their repentance.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī