Al-Kāfi - Volume 7 > Inheritance of People of other Religions
Hadith #2

2- عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي نَجْرَانَ عَنْ عَاصِمِ بْنِ حُمَيْدٍ عَنْ مُحَمَّدِ بْنِ قَيْسٍ قَالَ سَمِعْتُ أَبَا جَعْفَرٍ (عَلَيْهِ السَّلام) يَقُولُ لا يَرِثُ الْيَهُودِيُّ وَلا النَّصْرَانِيُّ الْمُسْلِمَ وَيَرِثُ الْمُسْلِمُ الْيَهُودِيَّ وَالنَّصْرَانِيَّ.

2. Ali ibn Ibrahim has narrated from his father from ibn abu Najran from ‘Asem ibn Humayd from Muhammad ibn Qays who has narrated the following: “I once heard abu Ja‘far, Alayhi al-Salam, saying, ‘Jews and Christians cannot inherit from the Muslims but a Muslim can inherit from Jews and Christians.’”