Al-A'mash (may Allah have mercy on him) narrated from some of his teachers that Sayyiduna Ali (may Allah be pleased with him) used to say: "The mother has a third of the original wealth (in inheritance)."

Umair bin Saeed said: "Harith Al-A'war taught me that in the division of inheritance between the husband and the parents, the husband will be given half, and the mother will receive one third of the remaining wealth."

Masruq bin Ajda’ (may Allah have mercy on him) said: Sayyiduna Abdullah bin Mas’ud (may Allah be pleased with him) used to say:“When there are paternal and maternal sisters present, and along with them there are only paternal siblings, then the maternal and paternal sisters will receive two-thirds, and the remainder will go only to the male (i.e., the brother), and nothing will be given to the women.”Then when I reached Madinah and heard the statement of Sayyiduna Zayd bin Thabit (may Allah be pleased with him), I liked it. So some of his companions said:“Will you abandon the statement of Sayyiduna Abdullah bin Mas’ud?”He replied:“When I came to Madinah, I found Zayd bin Thabit (may Allah be pleased with him) to be firmly grounded in knowledge.”

Masruq (may Allah have mercy on him) said: "I (meaning himself) used to act upon the statement of Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the paternal and maternal sister should be given two-thirds, and whatever remains should be given only to the brothers (i.e., the males), not to the females." Then he (i.e., Masruq) traveled to Madinah and returned, and now he held the opinion that brothers and sisters should share equally in the remaining wealth. Upon this, Alqamah (may Allah have mercy on him) asked him: "What made you turn away from the statement of Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him)? Did you meet anyone whom you consider more steadfast than him?" He replied: "No, but I met Zayd bin Thabit (may Allah be pleased with him), and I found him deeply rooted in knowledge."