Is it permissible for a mother to reclaim money she distributed among her children, based on the principle of "to the male, the equivalent of the share of two females?"

It is permissible for parents to revoke their gift to their child. The proof for this is the Prophet's (peace be upon him) saying: "It is not lawful for a man to give a gift or a donation and then revoke it, except for a father regarding what he gives to his child. The example of one who gives a gift and then revokes it is like a dog that eats until it is full, then vomits, and then returns to its vomit." Based on this, it is permissible for a mother to revoke her gift to her children.