Genesis 16:1

שפחה מצרית A HANDMAID, AN EGYPTIAN — She was a daughter of Pharaoh; when he saw the miracles which had been performed for Sarah’s take he said, “It is better for my daughter to be a handmaid in this man’s house than be mistress in another man’s house” (Genesis Rabbah 45:1).

וְשָׂרַי֙ אֵ֣שֶׁת אַבְרָ֔ם לֹ֥א יָלְדָ֖ה ל֑וֹ וְלָ֛הּ שִׁפְחָ֥ה מִצְרִ֖ית וּשְׁמָ֥הּ הָגָֽר׃

Now Saray Avram’s wife bore him no children: and she had a Miżrian handmaid, whose name was Hagar.