Leviticus 25:48

וְהִתְנַחֲלְתֶּם אֹתָם לִבְנֵיכֶם אַחֲרֵיכֶם לָרֶשֶׁת אֲחֻזָּה לְעֹלָם בָּהֶם תַּעֲבֹדוּ וּבְאַחֵיכֶם בְּנֵֽי־יִשְׂרָאֵל אִישׁ בְּאָחִיו לֹא־תִרְדֶּה בוֹ בְּפָֽרֶךְ

And ye may make them an inheritance for your children after you, to hold for a possession: of them may ye take your bondmen for ever; but over your brethren the children of Israel ye shall not rule, one over another, with rigour.

וְכִי תַשִּׂיג יַד גֵּר וְתוֹשָׁב עִמָּךְ וּמָךְ אָחִיךָ עִמּוֹ וְנִמְכַּר לְגֵר תּוֹשָׁב עִמָּךְ אוֹ לְעֵקֶר מִשְׁפַּחַת גֵּֽר

And if a stranger who is a settler with thee be waxen rich, and thy brother be waxen poor beside him, and sell himself unto the stranger who is a settler with thee, or to the offshoot of a stranger’s family,

אוֹ־דֹדוֹ אוֹ בֶן־דֹּדוֹ יִגְאָלֶנּוּ אֽוֹ־מִשְּׁאֵר בְּשָׂרוֹ מִמִּשְׁפַּחְתּוֹ יִגְאָלֶנּוּ אֽוֹ־הִשִּׂיגָה יָדוֹ וְנִגְאָֽל

or his uncle, or his uncle’s son, may redeem him, or any that is nigh of kin unto him of his family may redeem him; or if he be waxen rich, he may redeem himself.

וְחִשַּׁב עִם־קֹנֵהוּ מִשְּׁנַת הִמָּכְרוֹ לוֹ עַד שְׁנַת הַיֹּבֵל וְהָיָה כֶּסֶף מִמְכָּרוֹ בְּמִסְפַּר שָׁנִים כִּימֵי שָׂכִיר יִהְיֶה עִמּֽוֹ

And he shall reckon with him that bought him from the year that he sold himself to him unto the year of jubilee; and the price of his sale shall be according unto the number of years; according to the time of a hired servant shall he be with him.