Genesis 21:8-10

Douay-Rheims 1899 American Edition

⁸ And the child grew and was weaned: and Abraham made a great feast on the day of his weaning.

⁹ And when Sara had seen the son of Agar the Egyptian playing with Isaac her son, she said to Abraham:

¹⁰ Cast out this bondwoman, and her son: for the son of the bondwoman shall not be heir with my son Isaac.