Genesis 21:10

21:10 So she said to Abraham, “Banish ¹  that slave woman and her son, for the son of that slave woman will not be an heir along with my son Isaac!”

Genesis 25:5

25:5 Everything he owned Abraham left to his son Isaac.

¹ tn Heb “drive out.” The language may seem severe, but Sarah’s maternal instincts sensed a real danger in that Ishmael was not treating Isaac with the proper respect.