Or HaChaim on Exodus 13:5/אור החיים על שמות י״ג:ה׳

1 והיה בי יביאך ה׳ אל ארע הכנעני, "It will be when G'd brings you to the land of the Canaanite, etc." The reason that this particular commandment is conditional on arrival in the Holy Land is either in accordance with what I have written on Exodus 12,25, or in order that the story of the Exodus should not be forgotten once the Israelites had lived in the Holy Land for many generations.