Rashi on Numbers 32:19/רש"י על במדבר ל״ב:י״ט

1מעבר לירדן וגו׳ ON THE SIDE OF THE JORDAN AND YONDER — i.e., on the western side.

2כי באה נחלתנו FOR OUR INHERITANCE HAS COME [TO US] — This means: by that time we shall have already received it on the eastern side.