Was yamato made when the first hokage hashirama Was alive? If so there might be an explaination to how madara got hashirama cell. Maybe there was more hashirama clone
See there is simple logic and that is if yamato was made by hashirama dna while hashi was alive then yamato age should be near to hiruzen sarutobi or even older than him so there is just simple logic that yamato can't be created or i prefer saying born after hashi-sama death, got it