Board Thread:Theories and Speculation/@comment-1512913-20160329065033/@comment-9782468-20160330130320

Maybe a better way to explain my point is this:

Sasuke doesn't have Asura chakra, he has Hagoromo chakra right from the source.

It works this way because while Asura chakra was once Hagoromo chakra (now it's just split), Hagoromo chakra was never Asura chakra.