Genesis 21:7-9

Complete Jewish Bible

⁷ And she said, “Who would have said to Avraham that Sarah would nurse children? Nevertheless, I have borne him a son in his old age!”

⁸ The child grew and was weaned, and Avraham gave a great banquet on the day that Yitz’chak was weaned. ⁹ But Sarah saw the son of Hagar the Egyptian, whom Hagar had borne to Avraham, making fun of Yitz’chak;