Does the reward for charitable giving and spending on orphans, which the mother used to do from her father's money and with his approval, reach her after her death?

A woman is not permitted to give anything from her husband's money in charity to anyone except with his permission, because it is an encroachment upon another's property. If he knows and approves, as is the case with the questioner's mother, then the reward for the charity includes both of them, as the Prophet (peace and blessings be upon him) said: "If a woman spends from the food of her house, without causing spoilage, she will have her reward for what she spent, and her husband will have his reward for what he earned."