What must a woman do who took money without the knowledge of her deceased husband, and she has repented, performed Umrah, and given charity on his behalf from her own money, so that her repentance may be complete?

If the wife took from her husband's money without his explicit or implicit permission, she has committed a forbidden act, unless he was remiss in spending on her or their children. In that case, she is permitted to take what is sufficient for her, within reasonable bounds. She must repent and return what she took to the heirs. Performing 'Umrah or giving charity on her behalf does not waive the right of the heirs, for the right of a human being is not waived except by its fulfillment or by their forgiveness. If she knows the amount she took, she should return it. If she is unable to determine the exact amount, she should pay what she believes most likely clears her liability. She may also conceal her identity by returning each heir's share indirectly.