Deuteronomy 15:12-14

12“1If your fellow countryman, a Hebrew man or woman, is sold to you, then he shall serve you for six years, but in the seventh year you shall set him 2free.

13And when you set him 3free, you shall not send him away empty-handed.

14You shall give generously to him from your flock, your threshing floor, and from your wine vat; you shall give to him as the Lord your God has blessed you.