Rashi on Leviticus 25:51/רש"י על ויקרא כ״ה:נ״א

1אם עוד רבות בשנים IF THERE BE YET MANY YEARS until the Jubilee.

2לפיהן ACCORDING TO THEM [HE SHALL RESTORE THE PRICE OF HIS REDEMPTION] — all exactly as I have explained above.