I assign the land you sojourn in to you and your offspring after you, all the land of Canaan, as an everlasting holding. I will be their God.
Rashi on Genesis 17:8, with the source tradition reflected in his comment.
English: “As an everlasting holding” — and there I will be their God; but an Israelite who dwells outside the Land is like one who has no God.
Supplementary classical material not listed by Torah Temimah under this exact passuk.