בָּנִ֛ים אֲשֶׁר־יִוָּלְד֥וּ לָהֶ֖ם דּ֣וֹר שְׁלִישִׁ֑י יָבֹ֥א לָהֶ֖ם בִּקְהַ֥ל יְהוָֽה׃ (ס)
Targum Jonathan on Deuteronomy
The children who are born to them in the third generation shalt be fit to take wives from the people of the congregation of the Lord.