וְהִתְנַחֲלְתֶּ֨ם אֹתָ֜ם לִבְנֵיכֶ֤ם אַחֲרֵיכֶם֙ לָרֶ֣שֶׁת אֲחֻזָּ֔ה לְעֹלָ֖ם בָּהֶ֣ם תַּעֲבֹ֑דוּ וּבְאַ֨חֵיכֶ֤ם בְּנֵֽי־יִשְׂרָאֵל֙ אִ֣ישׁ בְּאָחִ֔יו לֹא־תִרְדֶּ֥ה ב֖וֹ בְּפָֽרֶךְ׃ (ס)
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.
Targum Jonathan on Leviticus
And you may leave them to your children after you, to inherit as a perpetual possession; them you shall make to serve: but of your brethren of the sons of Israel no man (may enslave) his fellow; them shall you not make to serve with rigour.