Genesis 24:3
And I will make you swear by the LORD, the God of heaven, and the God of the earth, that you shall not take a wife to my son of the daughters of the Canaanites, among whom I dwell:
Torrey's Topical Textbook—AKJV

Genesis 26:34,35
And Esau was forty years old when he took to wife Judith the daughter of Beeri the Hittite, and Bashemath the daughter of Elon the Hittite:
Torrey's Topical Textbook—AKJV

Genesis 28:1
And Isaac called Jacob, and blessed him, and charged him, and said to him, You shall not take a wife of the daughters of Canaan.
Torrey's Topical Textbook—AKJV