What is the legal ruling on the action of a wife who prevents her husband from retracting a gift to their daughters, claiming to possess powers of attorney from them, and upon whom does the sin fall in this regard?

It is permissible, according to Sharia, for a man to gift his wealth to his wife, children, or others if he is legally competent to dispose of property, provided that this occurs during his good health, that he distributes the gift equally among his children, that he relinquishes control over the property such that the recipient can dispose of it as an owner, that his intention is not to deprive his heirs, and that this act does not lead him into something unlawful. If these conditions are met, then it is permissible; otherwise, it is not. It is forbidden to give money to the foolish (women and young children) in a way that would impoverish the giver. The questioner should reclaim the gift from his daughters if his intention was to harm the heirs, and this is permissible for a father.