Al-Kāfi

Hadith 71
taqwagood-deeds
3ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ مُحَمَّدِ بْنِ عِيسَى عَنْ يُونُسَ عَنْ سَلامٍ الْجُعْفِيِّ قَالَ سَأَلْتُ أَبَا عَبْدِ الله (عَلَيهِ السَّلام) عَنِ الإيمَانِ فَقَالَ الإيمَانُ أَنْ يُطَاعَ الله فَلا يُعْصَى.
3. Ali ibn Ibrahim has narrated from Muhammad ibn ‘Isa from Yunus from Salam al-Ju’fly who has said the following: “Once I asked abu ‘Aabd Allah (a.s.) about belief. He said, ‘Belief is whereby Allah is obeyed and (with it) one does not commit sins.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī