Safwan bin 'Isa al-Zhry صفوان بن عيسى الزهري أبو محمد البصري · The Book of Financial Transactions

"There was a man who never did any good deed, but he used to lend to people and he would say to this messenger: "Take what can be paid easily and leave what is difficult, let them off, and perhaps Allah, the Mighty and Sublime, said to him: 'Did you ever do any good did? He said: No, but I had a slave and I used to lend to people. When I sent him to collect the debts I said…