Board Thread:Theories and Speculation/@comment-31099706-20171112093850/@comment-25122992-20171112130311

Wait, Zetsu and Kaguya surely have known about Sasuke as Indra's reincarnation, the same way as about Naruto being Asura's reincarnation. At least, in case we're talking about Black Zetsu. During the final fight against Kaguya, BZ literally commented on how it's unusual to see Indra's/Asura's reincarnations working together. And Kaguya was able to recognise them as the reincarnations as well during their first encounter after her resurrection.