Genesis 28:6-9 King James Version (KJV)
6 When Esau saw that Isaac had blessed Jacob, and sent him away to Padanaram, to take him a wife from thence; and that as he blessed him he gave him a charge, saying, Thou shalt not take a wife of the daughers of Canaan;
7 And that Jacob obeyed his father and his mother, and was gone to Padanaram;
8 And Esau seeing that the daughters of Canaan pleased not Isaac his father;
9 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.