Board Thread:Naruto Discussions/@comment-29393962-20161111215453/@comment-734582-20170117174129

LegionZero wrote: Definition of power is still your assumption. Your idea is equally an assumption. Judging by what we know from the Manga however, it would be really weird if he gave Ashura actual power.

It's also not been stated outright. The anime adaptation of events has so many contradictions it's clear that it's entirely non-canon