Cross reference
Genesis 25:10
10 the field which Abraham purchased of the children of Heth. There was Abraham buried, with Sarah his wife.
Genesis 23:16
16 Abraham listened to Ephron. Abraham weighed to Ephron the silver which he had named in the audience of the children of Heth, four hundred shekels of silver, according to the current merchants' standard.
Genesis 49:31
31 There they buried Abraham and Sarah, his wife. There they buried Isaac and Rebekah, his wife, and there I buried Leah: