Brothers from a Mother with the Grandfather

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 عليه السلام, has said, ‘The share of brothers from one’s mother is one-third if a grandfather is with them.’”