From Sahih Muslim (Hadith 2340):
Abu Huraira reported Allah's Messenger (ﷺ) as saying:The Last Hour will not come till wealth is abundant and overflowing, so much so that the owner of the property will think as to who will accept Sadaqa from him, and a person would be called to accept Sadaqa and he would say: I do not need it
Reference: Muslim 2340