It is narrated that Sayyiduna Muawiyah (may Allah be pleased with him) wrote to Sayyiduna Zaid bin Thabit (may Allah be pleased with him) regarding the grandfather. So Zaid replied: "I saw the two caliphs before you; they would give the grandfather half with one brother, a third with two brothers, and with more brothers, they would not reduce the grandfather's share to less than a third."

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) used to say: "The grandfather shares in the wealth with the brothers as long as his share is not less than one third; then he is given one third, and with the son, the grandfather receives one sixth."

The decision of Sayyiduna Ali (may Allah be pleased with him) was that if the heirs are the husband, the mother, the sister from the side of the father and mother, and the grandfather, then the husband should be given three shares, the mother two shares, the grandfather one share, and the sister three shares, while Abdullah bin Mas'ud (may Allah be pleased with him) gave the mother one share. Zaid bin Thabit (may Allah be pleased with him) multiplied the division by three, making a total of 27 shares, and distributed accordingly.

This same narration is from Sayyiduna Ali, Sayyiduna Abdullah bin Mas'ud, and Sayyiduna Zaid bin Thabit (may Allah be pleased with them), and Sayyiduna Ibn Abbas (may Allah be pleased with them both) added that: "The husband should be given half, the mother one-third, and the grandfather the remainder, and the sister should not receive anything."

The same narration is also reported from Sayyiduna Ali, Sayyiduna Abdullah bin Mas'ud, Sayyiduna Zaid bin Thabit, and Sayyiduna Ibn Abbas (may Allah be pleased with them).

The same statement is also narrated from Sayyiduna Ali, Sayyiduna Abdullah bin Mas'ud, and Sayyiduna Zaid bin Thabit (may Allah be pleased with them).

Sayyiduna Umar and Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with them both) did not give preference to the grandfather over the mother.

Sayyiduna Ali (may Allah be pleased with him) gave a verdict in a case where the heirs were a grandfather, mother, and sister, that the sister should be given half, the mother one-third, and the grandfather one-sixth. Whereas Abdullah bin Mas'ud (may Allah be pleased with him) gave the sister half, the mother one-sixth, and the grandfather one-third. Zaid bin Thabit (may Allah be pleased with him) gave the mother one-third and divided the remaining wealth between the grandfather and the sister in the proportion of two shares for the male and one share for the female.

A case was brought before Hajjaj bin Yusuf: concerning the mother, grandfather, and sister. He asked me, and I said: This is the verdict of Sayyiduna Ali (may Allah be pleased with him) and seven companions: Sayyiduna Umar, Sayyiduna Abdullah bin Mas'ud said: "The sister gets half, the mother gets one-sixth, and the grandfather gets one-third." Sayyiduna Ali said: "The mother gets one-third, the sister gets half, and the grandfather gets one-sixth." Sayyiduna Uthman said: "Each of the three gets one-third." Hajjaj said: This is nothing. Zaid bin Thabit (may Allah be pleased with him) said: "Divide into nine shares: three for the mother, four for the grandfather, and two for the sister." Sayyiduna Ibn Abbas and Abdullah bin Zubair (may Allah be pleased with them both) said: "The mother gets one-third, the grandfather gets the remainder, and the sister gets nothing."

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) gave the verdict in the case of a daughter, a sister, and a grandfather that the daughter should be given half, and whatever remains should be equally divided between the grandfather and the sister.