Musannaf Ibn Abi Shaybah

Hakeem bin Iqal narrates that a case was brought before Hazrat Ali (may Allah be pleased with him) regarding two paternal cousins, one of whom was the husband and the other was a maternal brother. He asked Hazrat Shurayh, "What is your opinion about this?" Hazrat Shurayh replied, "Half is for the husband and the remainder is for the brother." Hazrat Ali (may Allah be pleased with him) said, "Is this your opinion?" He replied, "This is my opinion." So Hazrat Ali (may Allah be pleased with him) gave half of the wealth to the husband, one-sixth to the brother, and distributed the remaining wealth between the two.

It is narrated from Ibrahim that regarding the woman who left behind three paternal cousins, one of whom was her husband and another her maternal brother, Hazrat Ali (may Allah be pleased with him) and Hazrat Zaid (may Allah be pleased with him) said that half of the estate will be for the husband and one-sixth for the maternal brother, and the remainder will be divided equally among them. And Hazrat Ibn Masood (may Allah be pleased with him) said that half of the estate is for the husband and the remainder is for the maternal brother. Hazrat Abu Bakr said that this issue, according to the opinion of Hazrat Ali (may Allah be pleased with him) and Zaid (may Allah be pleased with him), will be resolved from the number six, of which three parts (i.e., half the estate) will be for the husband, and one-sixth for the maternal brother, and the remaining two parts will be divided between them. And according to the statement of Hazrat Ibn Masood (may Allah be pleased with him), this issue will be resolved from two parts, of which half will be for the husband and the remainder for the maternal brother.