Genesis 21:8-10

Darby Translation

⁸ And the child grew, and was weaned. And Abraham made a great feast on the day that Isaac was weaned.

⁹ And Sarah saw the son of Hagar the Egyptian, whom she had borne to Abraham, mocking.

¹⁰ And she said to Abraham, Cast out this handmaid and her son; for the son of this handmaid shall not inherit with my son—with Isaac.