al-Husain bin Waqid ak-Mervzi الحسين بن واقد المروزي · The Book of Financial Transactions

"The Messenger of Allah bought some food from a Jew on credit, and he gave him a shield of his as a pledge. "

The prophet said: "A man used to lend to people, but if he realized that someone was going through hardship, he would say to his slave: 'Let him off, perhaps Allah, the Most High, will let us off.' And when he met Allah, He let him off."