Disney reveals the original ending of the animated Aladdin, which shows Genie and the peddler are indeed the same person.
Peddler, Disney Wiki
Aladdin: How the New Teaser Trailer Recreates the Animated Disney Movie - IGN
Aladdin and the King of Thieves, Disney Wiki
Never-Before-Seen Outtakes of Robin Williams in 'Aladdin
Disney Confirmed The First Aladdin Fan Theory About The Genie
Aladdin': Disney's alternate ending proves the peddler is Genie
Mouseplanet - The Robin Williams - Disney Genie War Part Two by Jim Korkis
Aladdin and the King of Thieves (Video 1996) - IMDb
Aladdin: How the New Teaser Trailer Recreates the Animated Disney Movie - IGN
Peddler, Aladdin Wiki