Board Thread:Theories and Speculation/@comment-25025726-20161107172956/@comment-3965545-20161130005649

You need the flesh. So for example if Hashi or Naruto took Madara or Sasuke's eyes or flesh.. they would eventually awaken Rinnegan. Momoshiki has the Rinnegan in his hands from the chakra pills. Instead of Rinne Sharingan he got Rinnegan... in his hands.