What are the limits of a father's authority to dispose of his children's money, male and female, without oppressing any of them, knowing that some of the children contribute to household expenses, their siblings' education, and the purchase of real estate?

What a father spends on his children is divided into two categories: obligatory maintenance, such as food and clothing, which cannot be reclaimed. And non-obligatory spending, such as education, which can be reclaimed if it was a loan.

What children spend on parents or siblings is divided into two categories: obligatory, such as maintenance when needed, which cannot be reclaimed. And non-obligatory, such as additional construction or purchasing land, which can be reclaimed if it was a loan.

The general principle is that the older son should become independent when he can support himself, and he should provide for his parents and siblings when needed.

It is permissible for a father to take from his son's wealth when in need, provided that it does not harm the son or take what the son needs, and that he does not give it to another without the son's permission and willing consent.