Genesis 28:6-9

28:6 Esau saw that Isaac had blessed Jacob and sent him off to Paddan Aram to find a wife there. As he blessed him, Isaac commanded him, “You must not marry a Canaanite woman.” 28:7 Jacob obeyed his father and mother and left for Paddan Aram. 28:8 Then Esau realized that the Canaanite women were displeasing to his father Isaac. 28:9 So Esau went to Ishmael and married Mahalath, the sister of Nebaioth and daughter of Abraham’s son Ishmael, along with the wives he already had.