If a fellow Hebrew, a man or a woman, sells himself to you and serves you six years, in the seventh year you must let him go free.1
References for Deuteronomy 15:12
And when you release him, do not send him away empty-handed.
Supply him liberally from your flock, your threshing floor2 and your winepress. Give to him as the LORD your God has blessed you.
References for Deuteronomy 15:14