Musannaf Ibn Abi Shaybah

It is narrated from Ikrimah that he says: Hazrat Ibn Abbas (may Allah be pleased with them) sent me to Hazrat Zaid bin Thabit (may Allah be pleased with him) to inquire about the issue of inheritance for the husband and parents. So Hazrat Zaid (may Allah be pleased with him) said that the husband gets half of the wealth, and the mother gets one third of the remaining wealth, and that will be one sixth of the total wealth. Hazrat Ibn Abbas (may Allah be pleased with them) sent a message to him asking, "Do you find this in the Book of Allah?" He replied, "I dislike giving preference to the mother over the father," and Hazrat Ibn Abbas (may Allah be pleased with them) used to give the mother one third of the entire wealth.

It is narrated from Zaidah that Sulaiman said that Ibrahim used to give the same answer to this issue as Hazrat Zaid (may Allah be pleased with him) used to give.

Hajjaj narrates from a shaykh from Hazrat Muhammad bin Hanafiyyah that in the case where the husband and parents are heirs, the husband receives half of the wealth, the mother receives one third of the remaining wealth, and the rest of the wealth is for the father.

It is narrated from Ibrahim that Hazrat Ali (may Allah be pleased with him) and Zaid bin Thabit (may Allah be pleased with him) gave a ruling regarding the issue of "wife and parents" and "husband and parents" that the mother receives "one third of the remaining estate."

It is narrated from A‘mash that Ibn Abbas (may Allah be pleased with them both) sent a man to Zaid to inquire about the issue of the husband and the parents, so he said: The husband gets half of the wealth and the mother gets one third of the remaining wealth. Ibn Abbas (may Allah be pleased with them both) asked: Do you find in the Book of Allah that the mother gets one third of the remainder? Zaid replied: This is my opinion; Allah Almighty knows best. Abu Bakr says: These are six shares: three shares for the husband, one share for the mother, and two shares for the father.