Transfer downloaded games between Xbox Ones?

I bought a pre-owned Xbox One at gamestop, a couple days ago, then signed into it and downloaded Minecraft to it when I saw it was on sale. But just now I saw a large bundle package at Best Buy where you get a new 42 inch television for only a hundred more than I paid, plus Halo and Assassin's Creed Unity. I'm going to return my current Xbox One in to get this bundle. But, would I have to purchase Minecraft again to download it back to my profile? Or is it tagged to my profile? I need help as soon as possible.

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