Board Thread:Theories and Speculation/@comment-6769189-20200705100921/@comment-44437908-20200715111842

But if it is summoned using rinnegan as the six paths chibaku tensei seal can be undone by only rinnegan and Madara did it he freed gedo mazo from the seal and used it same as Nagato and Obito. But Hagoromo never did that or never would have done it.

Chapter 606 page 14