Sahih Muslim Book 5, Hadith Number 2178.

Chapter : Excellence of spending on one’s family, and servant, and sin of one who neglects or withholds their subsistence.

Abu Huraira reported Allah’s Messenger (may peace be upon him) as saying that Allah, the Most Blessed and High, said: O son of Adam, spend. I will spend on you. The right hand of Allah is full and overflowing and in nothing would diminish it, by overspending day and night.