Naruto Shippūden - Season 2 - Eps 45: The Consequences of Betrayal
Kabuto creates a fake corpse that resembles Sai, containing hidden traps to slow down Yamato's clone after sensing it. Naruto hasn't completely recovered from using the Demon Fox's chakra, and Yamato says that he will be left behind if he cannot keep up. Naruto is determined to finish his mission and not slow the team down. However Team Kakashi is forced to take a break when it's clear that Sakura has not fully recovered from her own injuries. Yamato then uses this opportunity to talk to Naruto alone and reveals to him that the one who hurt Sakura was Naruto himself. Naruto is shocked by what Yamato says to him.
About Naruto Shippūden

Title: Naruto Shippūden
First Air Date: 2007-02-15
Last Air Date: 2017-03-23
Status: Ended
Rating: 8.538/10 (from 8290 votes)
Language: JA
Seasons: 21
Total Episodes: 500
Network: TV Tokyo
Genres: Animation, Action & Adventure, Sci-Fi & Fantasy
Production Companies: TV Tokyo, Pierrot, Sound Box, Rakuonsha, Aniplex
Synopsis
After 2 and a half years Naruto finally returns to his village of Konoha, and sets about putting his ambitions to work. It will not be easy though as he has amassed a few more dangerous enemies, in the likes of the shinobi organization; Akatsuki.
Cast

Junko Takeuchi
Naruto Uzumaki (voice)

Noriaki Sugiyama
Sasuke Uchiha (voice)

Chie Nakamura
Sakura Haruno (voice)

Kazuhiko Inoue
Kakashi Hatake (voice)

Showtaro Morikubo
Shikamaru Nara (voice)

Satoshi Hino
Sai (voice)

Akira Ishida
Gaara (voice)

Hideo Ishikawa
Itachi Uchiha (voice)

Koichi Tochika
Neji Hyuga (voice)

Keiko Nemoto
Shizune (voice)