KJV:
Then went Esau unto Ishmael, and took unto the wives which he had Mahalath the daughter of Ishmael Abraham's son, the sister of Nebajoth, to be his wife.
NASB:
and Esau went to Ishmael, and married, besides the wives that he had, Mahalath the daughter of Ishmael, Abraham's son, the sister of Nebaioth.