Board Thread:Naruto Discussions/@comment-26320638-20150422140407/@comment-5936871-20150423023039

@Bolt Hagoromo didn't have SPSM himself though. He gave Naruto half of his chakra and by combining the chakra of all the tailed beasts and Hagoromo's senjutsu chakra Naruto was able to awaken SPSM.

@Leogian He couldn't even meet the main guy though until he received Asura's chakra.