We presented a case to Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) regarding the death of a brother who had left behind a grandfather and brothers, so he gave the grandfather one-sixth along with the brothers. Then, upon the death of another brother, a similar case was presented, and this time he gave the grandfather one-third. When we asked why he gave one-sixth before and now one-third, he replied: "We decide according to the rulings of our rulers."