Board Thread:Naruto Discussions/@comment-25442710-20140920121351/@comment-26302001-20140920171543

You need to be Senju or Uzumaki and take Uchiha DNA, or Uchiha and take Senju or Uzumaki DNA.. basically get Hagoromo's chakra and possess one of those three bodies.. As black zetsu said he was trying to get the other non uchiha of the three clans to awaken Rinnegan. I think you just need the complete chakra package and not half if you want the Rinnegan... Naruto only has half of Hagoromo's chakra. Sasuke had Hashirama's DNA and Chakra before Hagoromo gave him half of his Chakra so he had enough right there to get it.. Naruto never had enough to get it.. and Kakashi only had a small portion of the chakra so we don't know if that was enough either.

Asinine or not, Black Zetsu's statements made it very possible.