Sunan Abi Dawud
Hadith #3533
Narrated 'Aishah:Hind came to the Prophet (ﷺ) and said: Messenger of Allah, Abu Sufyan is a stingy person. Is there any harm to me if I spend on his dependants from his property without his permission ? The Prophet (ﷺ) replied: There is no harm to you if you spend according to the custom