וְשָׂרַי֙ אֵ֣שֶׁת אַבְרָ֔ם לֹ֥א יָלְדָ֖ה ל֑וֹ וְלָ֛הּ שִׁפְחָ֥ה מִצְרִ֖ית וּשְׁמָ֥הּ הָגָֽר׃
E Sarai, esposa de Avram, não lhe dera filhos; e ela tinha uma serva Mimitzrayim, e seu nome era Hagar.
The Midrash of Philo
Why it was that Sarah, the wife of Abraham, bore him no children? (Genesis 16:1).
The Midrash of Philo
What is the meaning of the statement, she had an Egyptian handmaid whose name was Hagar? (Genesis 16:1).
On Mating with the Preliminary Studies
The subject of this treatise is Gen. 16:1–6 with some omissions.