What is the ruling on a father who does not bequeath an inheritance to his children during his lifetime, and does the ruling differ if they are from different mothers?

It is not permissible for the deceased to bequeath anything to an heir, for the Prophet, peace and blessings be upon him, said: "There is no bequest for an heir." Therefore, it is not permissible for a father to bequeath inheritance to his children, as inheritance is a right for the heirs, as Allah Almighty said: "For men is a share of what the parents and close relatives leave, and for women is a share of what the parents and close relatives leave, be it little or much - a share ordained." And the Prophet, peace and blessings be upon him, said: "Give the prescribed shares to their rightful recipients, and whatever remains is for the closest male." The fact that the children are from different mothers does not affect the inheritance, as long as they are related to their father and inherit from him.