Naruto Shippuden

Season 20

Episode 31: Leaving the Village

Sasuke knocks Izumo and Kotetsu out on his way out of Konoha. He is intercepted by Kakashi, who asks what he is doing. Sasuke thanks him for his training, but explains he is unsatisfied with his progress, revealing he is going to train with Orochimaru, and incapacitates Kakashi with genjutsu.