Ibn Sirin narrated from Abu Ubaydah, who said: "I memorized one hundred rulings from some of the companions regarding the grandfather, and they contradicted one another." Al-Faḍl ibn Shadhan said: "Know that the grandfather always holds the position of a brother; he inherits where the brother inherits and is excluded where the brother is excluded." However, Al-Faḍl was mistaken in this matter because the grandfather inherits alongside the descendants (children's children), whereas a brother does not inherit in their presence. The paternal grandfather inherits alongside the father, and the maternal grandfather inherits alongside the mother, while a brother does not inherit alongside either parent. Additionally, a nephew inherits alongside the grandfather but not alongside the brother. So how can the grandfather always be in the same position as the brother, inheriting where the brother inherits and being excluded where the brother is excluded? Rather, the grandfather, when inheriting alongside siblings, is considered as one of them. However, to claim that he always holds their position - sharing the same rules of inheritance and exclusion - is incorrect, and Al-Faḍl ibn Shadhan did not provide any valid evidence to support this claim.