Genesis 49:30-32
30 the cave in the field of Machpelah, near Mamre in Canaan, which Abraham bought as a burial place from Ephron the Hittite, along with the field.
31 There Abraham and his wife Sarah were buried, there Isaac and his wife Rebekah were buried, and there I buried Leah.
32 The field and the cave in it were bought from the Hittites.”