Board Thread:Versus Debates/@comment-31171723-20170128170340/@comment-4080775-20170204013708

Madara implanted Hashi's cells into his body after he revived himself. Madara had access to Regeneration Ability and Wood Release before Kabuto implanted Hashi's face onto his chest.

And as far as that interview goes, you don't know what Madara it specifies, so stop assuming and guestamating. If Kishi himself didn't specify which Madara he was referring to, this we can only safely assume it was Madara as a whole. But keep assuming. Madara was whooping everyone's ass while he was blind, so Madara speaks for himself.