Leviticus 25:43

וְיָצָא מֵֽעִמָּךְ הוּא וּבָנָיו עִמּוֹ וְשָׁב אֶל־מִשְׁפַּחְתּוֹ וְאֶל־אֲחֻזַּת אֲבֹתָיו יָשֽׁוּב

Then shall he go out from thee, he and his children with him, and shall return unto his own family, and unto the possession of his fathers shall he return.

כִּֽי־עֲבָדַי הֵם אֲשֶׁר־הוֹצֵאתִי אֹתָם מֵאֶרֶץ מִצְרָיִם לֹא יִמָּכְרוּ מִמְכֶּרֶת עָֽבֶד

For they are My servants, whom I brought forth out of the land of Egypt; they shall not be sold as bondmen.

וְעַבְדְּךָ וַאֲמָתְךָ אֲשֶׁר יִהְיוּ־לָךְ מֵאֵת הַגּוֹיִם אֲשֶׁר סְבִיבֹתֵיכֶם מֵהֶם תִּקְנוּ עֶבֶד וְאָמָֽה

And as for thy bondmen, and thy bondmaids, whom thou mayest have: of the nations that are round about you, of them shall ye buy bondmen and bondmaids.

וְגַם מִבְּנֵי הַתּוֹשָׁבִים הַגָּרִים עִמָּכֶם מֵהֶם תִּקְנוּ וּמִמִּשְׁפַּחְתָּם אֲשֶׁר עִמָּכֶם אֲשֶׁר הוֹלִידוּ בְּאַרְצְכֶם וְהָיוּ לָכֶם לַֽאֲחֻזָּֽה

Moreover of the children of the strangers that do sojourn among you, of them may ye buy, and of their families that are with you, which they have begotten in your land; and they may be your possession.