Is it permissible for a woman to give charity on behalf of her deceased father from the pension of her deceased husband?

The ruling on retirement pensions varies depending on the nature of the pension system. If it results from a deduction from the employee's entitlements, then it is a debt owed to him, and the wife may only give charity from her share of it. If it is a grant from the employer, then it belongs to whomever it was designated for. If it was designated for the wife, she has the right to dispose of it and give charity from it on behalf of her father. If a part of it is hers and the remainder is for the children, she may only give charity from her share. If it was entirely designated for the employee's minor children, she does not have the right to dispose of it. If they are adult and mature, she may not dispose of it except with their permission.