Board Thread:Theories and Speculation/@comment-26422475-20181104100351/@comment-26107879-20181115013511

@Littlegen

He literally says they used the chakra that Hagoromo gave them to connect their spiritual and physical energies to create more Chakra. Using Chakra, which is a product of both energies; one can use Ninjutsu. Therefore, it's not a contradiction.

I don't know how you see a contradiction.