Board Thread:Theories and Speculation/@comment-33256714-20171005000302/@comment-30323490-20171007131343

Itachi's words: "You need to unlock both tsukuyomi and amaterasu to use the Susanoo are clearly false. Sasuke didn't even posses tsukuyomi, and Madara didn't posses any of these mangekyo abilities as well.

Madara as also able to use the Susanoo without having eyes. So the rinnegan is not linked to the Susanoo.