Is it permissible for the grandson's wife to feed the needy from the money the deceased entrusted to her, and then give the remainder to her son, knowing that the deceased had instructed her to give that money to her son only, and that the deceased had said two days before her death: "Take account of my right [what is due to me]"?

The question is about the ruling on feeding the poor on behalf of a woman who died owing missed fasts due to illness, and whether the feeding should be paid from the money she willed to her son.

- If a woman broke her fast due to illness, and her illness continued until her death, and she was unable to make up the fasts, then no fasting is done on her behalf, nor is expiation due from her; because she was unable to make them up. - However, if she was able to make them up but neglected to do so until she died, then expiation by feeding a poor person for each day she missed must be paid from her estate. This should be done from the principal of the estate before dividing the inheritance and distributing the bequests. - Regarding the woman's bequest of money to her son, this is a will to an heir, which is forbidden by Islamic law unless the other heirs agree to it.