Ruling on giving charity from one's father's money without his knowledge

Question:
A message was received by the program from one of the listening brothers. He says: Your brother (H. F. A.) is asking a number of questions. In one of them, he says: Is it permissible for me to give charity from my father's money while he does not know, knowing that he is abroad? And if he is present, is that permissible? Knowing that the charity is small and does not affect the wealth?

Answer:
If the charity is something customary, and your father permits it, such as the leftovers of food... what remains of the food; there is no harm. Or something your father has permitted, where the charity is something your father has allowed for you and your household; then there is no harm. Otherwise, his permission is necessary; because the money is his, so his permission is necessary for the charity. And if you follow the rule, you say to him: We will give charity of such-and-such, and he permits you, then there is no harm. The thing that is customary for him to permit, you may take out without the need for permission, such as the leftovers of food, such as giving water to drink, such as lending items that people need. There is no harm if you have known from your father that he permits these matters. Yes.

The presenter: May Allah reward you with good. So, do they contact their father via telephone, or via a postal message, and ask his permission for what they want?

The Shaykh: Yes, yes.

The Shaykh: Except for the thing they know he permits.

The presenter: May Allah bless you, and may He do you good.