It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, Allah Almighty has made obligatory upon the wealthy among the Muslims, in their wealth, an amount that suffices their poor. The poor are made to suffer hardship and distress only when they are left hungry and unclothed because of the conduct of their wealthy (that is, not paying what is due). Beware! Allah Almighty will take a severe account from these wealthy people on the Day of Resurrection and will punish them with a most terrible punishment."
Hadith Referenceالمعجم الأوسط / باب الدال / 3579
Hadith Takhrij«أخرجه سعيد بن منصور فى «سننه» برقم: 931، والبيهقي فى «السنن الكبرى» برقم: 13330، والطبراني فى «الصغير» برقم: 453»