Al-Kāfi
Hadith 3375- مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ مَحْبُوبٍ عَنْ عَلِيِّ بْنِ رِئَابٍ عَنِ ابْنِ مُسْكَانَ عَنِ الْحَلَبِيِّ عَنْ أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) فِي الإخْوَةِ مِنَ الأمِّ مَعَ الْجَدِّ قَالَ لِلإخْوَةِ مِنَ الأمِّ مَعَ الْجَدِّ نَصِيبُهُمُ الثُّلُثُ مَعَ الْجَدِّ.
5. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ibn Mahbub from Ali ibn Ri’ab from ibn Muskan from al- Halabiy who has narrated the following: “About the case of brothers from one’s mother with a grandfather, abu ‘Abd Allah (a.s.), has said, ‘The share of brothers from one’s mother is one-third if a grandfather is with them.’”