Can a father divide his wealth among his sons and equalize the shares between sons and daughters?

Question : The second question: Is it permissible for a father to divide his partnership among his children before he dies, and to equalize the shares between males and females, or to divide it as prescribed in the Shari'ah, where the male's share is equal to that of two females? Please provide the evidence for both cases, and may Allah reward you with good?

Answer : First, we hold that it is not desirable for a person to divide his wealth among his heirs, whether they are sons, daughters, brothers, sisters, uncles, aunts, mothers, grandmothers, or wives. He should not divide his wealth among the heirs. There are two reasons for this. The first is that he may need the money in the future. The second is that one of his heirs today may die, in which case he would not be entitled to the inheritance when the one who divided the wealth dies, and thus his action would be of no benefit. We hold that a person should not do this, meaning he should not divide his wealth among his heirs.
Second, if he does divide it, it should be according to the Islamic Shari'ah. If he divides it among his children, it is obligatory that the male's share be equal to that of two females. It is not permissible for him to prefer the male over the female, nor is it permissible for him to equal the female's share with the male's, because Allah the Exalted said: