Exodus 21:2
TSK
Hebrew Servants“If you buy a Hebrew servant, he is to serve you for six years, but in the seventh year he will go out free without paying anything.
TSK
TSK · Leviticus 25:40
Treasury of Scripture Knowledge references in NET.
Release of Debt Slaves If your fellow Hebrew– whether male or female– is sold to you and serves you for six years, then in the seventh year you must let that servant go free.