Naruto: Shippuuden - Season 6 Episode 31 -

Sasuke fights Killer Bee and is injured by his swords. Karin heals him, and Sasuke, Suigetsu, and Jugo then begin a combined assault on Bee until he decides to use the Eight-Tails' power. Sasuke is injured and revived again by Jugo, who regresses in age as a result. All healed, Sasuke unleashes Amaterasu on Bee, finally able to subdue him. Meanwhile, two Cloud ninja watch the fight from a cliff, and they notice the Uchiha crest on Sasuke. They rush the news to Bee's big brother, the Raikage.