Board Thread:Naruto Discussions/@comment-24847491-20140921145042/@comment-5936871-20140925165740

I believe the healing power is associated with Hashirama himself AND his Sage Mode. Madara didn't really start showing off any incredible healing power until he took Hashirama's Senjutsu and started getting his ass kicked by the Tailed Beast. I mean Yamato and Danzo have his DNA, but they never showed off any incredible healing abilities.