When does Naruto learn the wind rasen-shuriken?

OK after his encounter with uchiha sasuke he begins training with kakashi. Helping him in jutsus.Since naruto is a wind element he is able to use rasen shuriken. He uses it against kakuzu. Rasen shuriken is kinjutsu (a forbidden jutsu) but naruto uses even though its incomplete..found in episode 308-309 ..episode 310 is still invalid