Al-Kāfi

Hadith 1278
disbelief
1ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ أَبِي بَصِيرٍ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ كَفَرَ بِالله مَنْ تَبَرَّأَ مِنْ نَسَبٍ وَإِنْ دَقَّ.
1. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from abu Basir from Abu ‘Abdillah (a.s.) who has said the following: “Abu ‘Abd Allah (a.s.) has said, ‘It is to disbelieve Allah to disown one’s lineage even though it (the lineage) is very lowly.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī