Board Thread:Theories and Speculation/@comment-27924662-20161219053341/@comment-734582-20170112165406

UltimaDude wrote: @Thekillman Obito was able to manifest Juubi in tree form and with it was about to cast IT Hence why i said he couldn't manifest it himself. Georgio722 wrote: It could be because he didn't approach the moon, or he doesn't have most of Kurama, only the portions Kinkaku and Ginkaku had, or both. Irrelevant. Obito was aware of the procedures, and still manifested the tree. The juubi also took some time regenerating to it's full form, so the fact that it only had portions of biju is also irrelevant.

BeyondRed wrote: Even though the tablet, or at least the section Madara quoted, doesn't mention the Ten-Tails as a requirement for Rinne Sharingan I'd argue that it does, in fact, mention the Juubi, just not by name. It requires the power of Rinne. But the power of Rinne thus includes not just the Rinnegan but also the Juubi. Biju after all are immortal beings, and their regeneration is essentially the same as Transmigration, except they return to their own body.

Thus, the power of Rinne is both the Biju and the Eyes (rinnegan)