The Free and Slaves do not Inherit each other
Al-Kāfi|Volume 7|Book 2|Chapter 42
3- مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنِ الْعَلاءِ بْنِ رَزِينٍ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَحَدِهِمَا (عَلَيْهِما السَّلام) قَالَ لا يَتَوَارَثُ الْحُرُّ وَالْمَمْلُوكُ.
3. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Afi ibn af-Hakam from al-‘Ala’ ibn Razin from Muhammad ibn Muslim who has narrated the following: “One of the two Imam, (abu Ja‘far or abu ‘Abd Allah), ‘Alayhim al-Salam, has said, ‘The free and slaves do not inherit each other.’”
- Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (23/224)
- Ṣaḥīḥ al-Kāfī, vol. 3, p. 291