Al-Kāfi
Hadith 11953ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ النَّوْفَلِيِّ عَنِ السَّكُونِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ قَالَ أَمِيرُ الْمُؤْمِنِينَ (عَلَيهِ السَّلام) لَمَّتَانِ لَمَّةٌ مِنَ الشَّيْطَانِ وَلَمَّةٌ مِنَ الْمَلَكِ فَلَمَّةُ الْمَلَكِ الرِّقَّةُ وَالْفَهْمُ وَلَمَّةُ الشَّيْطَانِ السَّهْوُ وَالْقَسْوَةُ.
3. Ali ibn Ibrahim has narrated from his father from al-Nawfali from al-Sakuni from Abu ‘Abdillah (a.s.) who has said the following: “Amir al-Mu’minin, Ali ibn abu Talib (a.s.) has said, ‘There are two kinds of motivations, one from Satan and one from the angel. The motivation from the angel is tenderheartedness and shaip understanding, and the motivation from Satan is confusion and hardheartedness.’”