Al-Kāfi

Hadith 407
inheritanceslavery-captives
4- مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ فَضَّالٍ عَنِ ابْنِ أَبِي الْحَمْرَاءِ قَالَ قُلْتُ لأبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) أَيُّ شَيْ‏ءٍ لِلْمَوَالِي مِنَ الْمِيرَاثِ فَقَالَ لَيْسَ لَهُمْ شَيْ‏ءٌ إِلا التَّرْبَاءُ يَعْنِي التُّرَابَ.
4. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ibn Faddal from ibn abu al-Hamra’ who has narrated the following: “I once asked abu ‘Abd Allah (a.s.), about what Mawla’ (Master) receives of inheritance. He (the Imam) said, ‘They receive nothing except soil, that is, dirt.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī