Chapter on Following the Sunnah and Evidence of the Book
Al-Kāfi|Volume 1|Book 2|Chapter 22
6ـ وَبِهَذَا الاسْنَادِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ بَعْضِ أَصْحَابِهِ قَالَ سَمِعْتُ أَبَا عَبْدِ الله (عَلَيْهِ السَّلام) يَقُولُ مَنْ خَالَفَ كِتَابَ الله وَسُنَّةَ مُحَمَّدٍ (صَلَّى اللهُ عَلَيْهِ وَآلِه) فَقَدْ كَفَرَ.
6. It is narrated through the same chain of narrators from Ibn Abi ‘Umayr from certain persons of his people who has said the following. “Abu ‘Abdallah عليه السلام who has said, ‘Whoever disagrees with the book of Allah and the Sunnah of Prophet Muhammad صلى الله عليه وعلى آله وسلم he has certainly become a unbeliever.’”
- Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (1/229)
- Ṣaḥīḥ al-Kāfī