Genesis 28:6-9

6Now Esau saw that Isaac blessed Jacob when he sent him to Paddan-aram to take for himself a wife from there, when he blessed him and commanded him saying, “Don’t take a wife from the daughters of Canaan.”

7Jacob listened to his father Isaac and to his mother and went toward Paddan-aram.

8Then Esau saw that the daughters of Canaan were contemptible in his father Isaac’s eyes.

9So Esau went to Ishmael and took Mahalath, the daughter of Ishmael Abraham’s son, Nebaioth’s sister for his wife, besides his other wives.