Rashi on Deuteronomy 23:16/רש"י על דברים כ״ג:ט״ז

1לא תסגיר עבד THOU SHALT NOT DELIVER [UNTO HIS LORD] THE SERVANT [WHO IS ESCAPED FROM HIS LORD UNTO THEE] — Understand this as the Targum has it: עבד עממין the servant of the heathens. Another explanation is: that it implies even a Canaanite servant belonging to an Israelite who fled from outside the Land (from a foreign country) into the Land of Israel (Gittin 45a).