Board Thread:Naruto Discussions/@comment-36221354-20180717114536/@comment-34656247-20180717145821

Naruto recieved hagoromo's chakra which is a combination of both.... this was stated in the wiki '''When Kabuto Yakushi reincarnated Madara, he operated under a similar hypothesis that Sharingan can be evolved into Rinnegan through combination with Hashirama's DNA. To that end he successfully recreated the Rinnegan in Madara's reincarnated body,though these fake eyes did not have full access to the original's abilities.''' And in the manga kabuto stated that his theory was indeed true. so his theory was correct...Hamura didnt get the rinnegan because he had the byakugan...hagoromo on the other hand had the sharingan and thus it evolved from that.