It is narrated from Hasan Basri (may Allah have mercy on him) that Sayyiduna Umar bin Khattab (may Allah be pleased with him) inquired from the people about the prescribed share of the grandfather in inheritance. Sayyiduna Ma'qil bin Yasar Muzani (may Allah be pleased with him) said: Regarding this, the Messenger of Allah (peace and blessings be upon him) had given a ruling. He asked: What was it? He replied: The Prophet (peace and blessings be upon him) had given one-sixth. Sayyiduna Umar (may Allah be pleased with him) asked: With which individuals? He replied: That I do not know. Sayyiduna Umar (may Allah be pleased with him) said: Then you have not understood the issue; how will this suffice you?