"One Technique" is chapter 596 of the original Naruto manga.
Summary
After a series of attacks launched at Tobi, The team regroups after noticing a slight crack on his mask. Guy and Naruto think that the last attack had actually hit the mask; however Kakashi disagrees. Just as Kakashi begins to come up with an assumption, Bee takes the oppurtunity to strike the Demonic Statue of the Outer Path as it continues to transform to the Ten Tails. The attack, however, was stopped when Tobi summoned a barrier rendering the team powerless to strike the statue until they defeat the masked man. After the skirmish, Kakashi continues to analyse the situation when finally he figured out a way to attack Tobi. He then tells the group to try what he came up with. They then leap unto Bee's hand and were launched directly to Tobi as the plan commences. Guy starts off with unleashing the Soshuga only for Tobi to avoid it using his dematerialisation ability. Naruto joins in the fray by launching a Rasengan. Tobi avoids it also however the Rasengan seemingly dispersed before phasing through Tobi when suddenly an explosion inflicted his right arm. Tobi then realized that the attack was transported to the other side using Kamui just as he was about to materialize. Kakashi then states that he has figured out the secret to Tobi's ability claiming he was only using one jutsu after all.