Board Thread:Naruto Discussions/@comment-12509038-20140902023453/@comment-5407586-20140902153835

Uchiha In Training wrote: @JOA20: When did Sasuke say that it was only enough to have awakened it in both eyes, I don't remember? At the end of chapter #464: "Only those who have awakened the Mangekyo Sharingan in both eyes can use it, the third power: Susanoo".