Mukhtasar Sahih Bukhari — Hadith 728

Narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Noble Prophet (peace and blessings of Allah be upon him) said: "Every morning two angels descend (from the sky). One of them says: 'O Allah! Grant a substitute to everyone who spends (in Your cause).' And the other says: 'O Allah! Destroy the wealth of everyone who withholds (from spending).' "