Dahhak bin Qais narrated that Sayyiduna Umar (may Allah be pleased with him) made a decision regarding inheritance during the plague of Amwas (or the first plague that occurred in the era of Islam): that the heirs who are children from the father's side will all be equal in rank, but those from the mother's side will have more right, and among the heirs, whoever is closer to the father will have more right to the wealth.