Parashas Behar · Aliyah 3 · Passuk 25:23
Chabad.org — English translation + Rashi
Torah Temimah cites Sifra (Torat Kohanim).
English: “And the land shall not be sold permanently.” Forever.
Classical derasha (Sifra).
Ancestral land may never be sold in perpetuity; it always reverts at Yovel.