Board Thread:Naruto Discussions/@comment-25442710-20140920121351/@comment-25343176-20141005092735

Hagoromo's chakra didn't result in the sharingan. Sharingan is only achieved when youre a reincarnate of indra and go through emotional stress. Yes he was split into yin and yang. Indra received his chakra & eyes and Ashura got his lifeforce & Stamina. Naruto can't awaken the rinnegan cause he doesn't have the sage's eyes.

The highest power of the sage's body is SPST, while the eyes is rinnegan. Thats 50-50 of Hagoromo. Now if youre saying Ashura reincarnates can manifest rinnegan then youre basically saying Hes he same as the sage. No one but Hagoromo is born with Both the eyes and body.