Whoa bros, who was right about Indian sovereignty over the Miami valley?

Teseh, or that Harrison Ford dude? Teseh said that no individual tribe could sell land to settlers without approval of the larger confederacy of tribes, but Han Solo told this Teseh dude to pound sand, that each tribe could sell land if they wanted to.. this led up to a battle called tipping drunks in a canoe.. Was Han Solo right, or was this teseh indian dude right bros?