Board Thread:Theories and Speculation/@comment-27717552-20160513151229/@comment-25093611-20160514184118

BakumatsuWarrior wrote: That's true only for Wind Release: Rasenshuriken. It's not necessarily true for something much less ambitious like, say, a simple Fire Release: Rasengan. Naruto actually developed Wind Release: Rasengan before developing the Rasenshuriken. While the Rasenshuriken's microscopic chakra needles will cause severe damage to the user's hand if it's not thrown through Sage Mode, there is no evidence to support that Wind Release: Rasengan has the same effect. So I don't think a Fire Release: Rasengan would burn Jiraiya's hands. ah, yeah, i forgot, there was the rasengan version too :)