Jabir bin Zayd al-Azdi جابر بن زيد الأزدي · The Chapters on Business Transactions

"There is no one who deals in usury a great deal (to increase his wealth) but he will end up with little (i.e., his wealth will be decreased)."

"The Messenger of Allah (ﷺ) commanded the rich to keep sheep, and he commanded the poor to keep chickens, and he said: 'When the rich keep chickens, then Allah will give permission for the town to be destroyed."'