욥기 11:14 할라카: Kitzur Shulchan Arukh

It is forbidden to keep a paid note in your possession, for it is said,¹⁸Job 11:14. "Do not let unrighteousness dwell in your tents."¹⁹If it is partially repaid, Shulchan Aruch 57:1 says you must write a receipt for the amount paid. Shach 57:6 argues that even if you do not write a receipt for that part, you may keep the document until it is fully paid.