Board Thread:Theories and Speculation/@comment-4688597-20150529040116/@comment-734582-20150529155927

Seelentau wrote: Oh and the tailed beasts were still not confirmed to be the reason for Naruto's Six Paths Sage Mode. Considering Hagoromo gave his chakra to Naruto and Sasuke, and that he was the Sage of Six Paths, i'm pretty sure that that's all the requirements fulfilled in one go. Specifically since he gave his eyes, the Rinnegan, to Sasuke and his physical power, his senjutsu, to Naruto.

So i don't see why the Tailed Beasts are a requirement.