Musannaf Ibn Abi Shaybah 33384 — The view of Zayd (may Allah be)

Ibrahim said: Sayyiduna Zayd (may Allah be pleased with him) used to make the grandfather share with the brothers and sisters up to a third of the wealth; when his portion reached a third, he would give him a third, and the remaining wealth belonged to the brothers and sisters. In the presence of a grandfather he would have nothing given to a maternal brother or a maternal sister. He would count paternal brothers along with full brothers in the division, but would give the paternal brothers nothing of the inheritance. If a full brother and a grandfather were the heirs, he would give the grandfather half of the wealth; if there were two brothers, he would give the grandfather a third of the wealth; and if the brothers were more, he would give the grandfather a third of the wealth and have the remaining wealth given to the brothers. When a sister and a grandfather were the heirs, he would give two thirds of the wealth to the grandfather and a third of the wealth to the sister; and if there were two sisters, he would give half of the wealth to the sisters and half of the wealth to the grandfather, so long as sharing in this way was better for the grandfather. If the portions of other sharers, that is, a wife, a mother and a husband, came in with him, he would first have those sharers given their portions, and in the remaining wealth he would make the grandfather share with the brothers and sisters. Thus, if a third of the remainder was better for the grandfather, he would give him a third of the remainder; if sharing in the division was better for him, he would do so; if a sixth of the whole wealth was better for him than sharing in the division, he would give him that; and if sharing in the division was better for the grandfather than a sixth, he would make him share in the division.