Al-Kāfi - Volume 7 > Inheritance of an Apostate
Hadith #4

4- ابْنُ مَحْبُوبٍ عَنِ الْعَلاءِ بْنِ رَزِينٍ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ قَالَ سَأَلْتُ أَبَا جَعْفَرٍ (عَلَيْهِ السَّلام) عَنِ الْمُرْتَدِّ فَقَالَ مَنْ رَغِبَ عَنْ دِينِ الإسْلامِ وَكَفَرَ بِمَا أَنْزَلَ اللهُ عَلَى مُحَمَّدٍ (صَلَّى اللهُ عَلَيْهِ وَآلِه) بَعْدَ إِسْلامِهِ فَلا تَوْبَةَ لَهُ وَقَدْ وَجَبَ قَتْلُهُ وَبَانَتِ امْرَأَتُهُ مِنْهُ فَلْيُقْسَمْ مَا تَرَكَ عَلَى وُلْدِهِ.

4. Ibn Mahbub has narrated from al-‘ Ala’ ibn Razin from Muhammad ibn Muslim who has narrated the following: “I once asked abu Ja’far, ‘Alayhi al-Salam, about an apostate (one who turns away from Islam). He (the Imam) said, ‘If one turns away from Islam and rejects what Allah has revealed to Muhammad, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, after his being a Muslim, his repentance has no effect. (After judicial due process) executing him is obligatory, his wife becomes stranger to him like an irrevocably divorced woman and his assets are distributed among his children.’”