The 234th prohibition is that we are forbidden from demanding repayment of a loan when we know that the borrower is unable to pay.

The source of this prohibition is G‑d's statement1 (exalted be He), "["When you lend money to My people, to the poor man among you,] do not behave like a creditor toward him."

Our Sages said in tractate Bava Metzia:2 "What is the source for the law that when someone owes you a maneh and you know that he does not have the money to repay you, that you are not even allowed to walk in front of him? It is the verse, 'do not behave like a creditor toward him.' " The Mechilta says: "The verse, 'do not behave like a creditor toward him' teaches that you should not constantly be visible to him."

You should be aware that this prohibition includes asking for repayment of an interest-bearing loan. Our Sages therefore said,3 "One who lends money with interest also transgresses G‑d's statement (exalted be He), 'do not behave like a creditor toward him,' as explained below.4