Genesis 21:10

and she said to Abraham, 'Get rid of that slave woman and her son, for that slave woman's son will never share in the inheritance with my son Isaac.'

(New International Version)

Therefore she said to Abraham, 'Drive out this maid and her son, for the son of this maid shall not be an heir with my son Isaac.'

(New American 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.

(King James Version)