"You shall not give interest to your brother"Deuteronomy 23:20.

One may not take a loan – whether money or any other item – from a fellow Jew if it involves payment of interest. Had the Torah not specified this prohibition, we'd have thought that the prohibition against loaning with interest lies only with the lender, but that the borrower does not transgress (similar to the prohibition against defrauding, where only the defrauder transgresses, not the defrauded).

In addition to this prohibition, the borrower also transgresses the prohibition against "placing a stumbling block in the path of a blind person."