What should a mother of young orphans do who, out of ignorance, mismanaged their money and gave a large portion of it to her husband, in the sight of Allah and her children who are now holding her accountable?

The money allocated to the orphan is his property, to be spent on his interests. It is not permissible for anyone to take anything from it except by a lawful right. Taking from it without right is a grave sin. If the mother is the guardian of her orphan children, she is permitted to dispose of their money in a way that serves their best interests. She is also permitted to consume from their money in a reasonable manner if she is in need. However, it is not permissible for her to give any of this money to her husband or to anyone else. The mother must repent and return these funds to her children, guaranteeing them unless they waive their right to them.