Al-Kāfi
Hadith 187 6ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ فَضَّالٍ عَنْ ثَعْلَبَةَ بْنِ مَيْمُونٍ عَمَّنْ حَدَّثَهُ عَنِ الْمُعَلَّى بْنِ خُنَيْسٍ قَالَ قَالَ أَبُو عَبْدِ الله (عَلَيْهِ السَّلام) مَا مِنْ أَمْرٍ يَخْتَلِفُ فِيهِ اثْنَانِ إِلا وَلَهُ أَصْلٌ فِي كِتَابِ الله عَزَّ وَجَلَّ وَلَكِنْ لا تَبْلُغُهُ عُقُولُ الرِّجَالِ.
6. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ibn Faddal from Al-Thaqafi‘laba ibn Maymun from one he narrated from al-Mu‘alla ibn Khunays who has said the following. “Abu ‘Abdallah (a.s.) has said, ‘There is no issue which would be disputed between two people but that there is a principle for it the book of Allah, the Most Majestic, the Most Glorious, only the man’s power of Intelligence is not able to reach it.’”