Genesis 25:7-10

Abraham lived to be one hundred seventy-five years old. He breathed his last breath and died at an old age, after a long and satisfying life. His sons Isaac and Ishmael buried him in the cave of Machpelah in the field of Ephron east of Mamre. (Ephron was the son of Zohar the Hittite.) So Abraham was buried with his wife Sarah in the same field that he had bought from the Hittites.