Genesis 49: 29 - 32
29 Then he charged them, and said to them, "I am to be gathered to my people; bury me with my fathers in the cave that is in the field of Ephron the Hittite,
30 in the cave that is in the field at Mach-pe'lah, to the east of Mamre, in the land of Canaan, which Abraham bought with the field from Ephron the Hittite to possess as a burying place.
31 There they buried Abraham and Sarah his wife; there they buried Isaac and Rebekah his wife; and there I buried Leah --
32 the field and the cave that is in it were purchased from the Hittites."

EWTN