Sahih Muslim Book 5, Hadith Number 2205.

Chapter : Acceptance of Sadaqa by honest work and its growth.

Abu Huraira reported Allah’s Messenger (may peace be upon him) as saying: There is never a day wherein servants (of God) get up at morn, but are not visited by two angels. One of them says: O Allah, give him more who spends (for the sake of Allah), and the other says: O Allah, bring destruction to one who withholds.