Kabuto said otherwise.
I don't think it's Rikudou Sennin/Izuna Uchiha. Why would Kabuto say « Anyway, you can relax, i haven't told a soul » to Madara?. What's so secret about his brother or the sage?. Hope Kishi clears that up soon.
I guess it's time for me to say hello. :p
I've been watching this forum for like tow months now, and i finally decided to join this great community. Sorry for the "shortness" of my post, and have a nice day by the way. :D