Genesis 21:10

and she said to Abraham, “Expel the slave woman and her son, for the slave woman’s son will never share in the inheritance with my son Isaac!”

Note Cited in Galatians 4:30

BSB · Berean Standard Bible
Wherefore she said unto Abraham, Cast out this bondwoman and her son: for the son of this bondwoman shall not be heir with my son, even with Isaac.
KJV · King James Version
Therefore she said to Abraham, “Cast out this servant and her son! For the son of this servant will not be heir with my son, Isaac.”
WEB · World English Bible
Wherefore she said unto Abraham, Cast out this handmaid and her son: for the son of this handmaid shall not be heir with my son, even with Isaac.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

Cast out
The word rendered "cast out," signifies also to divorce. See Le 21:7. In this latter sense, it may be understood here.
Genesis 25:6, 19; Genesis 17:19, 21; Genesis 20:11; Genesis 22:10; Genesis 36:6, 7; Matthew 8:11, 12; Matthew 22:13; John 8:35; Galatians 4:22–31; 1 John 2:19
heir
John 8:35; Galatians 3:18; Galatians 4:7; 1 Peter 1:4; 1 John 2:19