The Infinite Tsukuyomi does not affect Hashirama, Tobirama, Hiruzen and Minato because they are reanimated. Hagoromo, the Sage of the Six Paths, appears and explains to the four that Hashirama and Madara are the reincarnations of his sons Ashura and Indra. Hagoromo recounts the tale of how he founded Ninshu, the Ninja Creed, and about the lives of Ashura and Indra.
And eventually,
،وفي النهاية
Und es wird die Zeit kommen,
da ihr euch wieder vereint.
Y llegará un día en que serán uno solo.
Y llegará un día en que seáis uno solo.
E un giorno, tornerete 
finalmente a essere una cosa sola.
E eventualmente