Naruto Shippuuden Episode 78-79

Episode 78: "Given Judgment"

Asuma’s fire jutsu strikes Hidan, but much to the team's suprise, he receives the same damage. Hidan had just moments before, activated his ability: by injesting an opponent’s blood and standing in a ritual circle drawn in blood, his "curse" is able to transfer all damage inflicted on him to that opponent. Hiden proceeds to stab himself, injuring Asuma. Shikamaru, after analyzing the situation realizes how Hidan’s ability works, and then forces Hidan out of the circle, allowing Asuma to behead him.

Episode 79: "Unfulfilled Scream"

Hidan’s immortality enables him to stay alive even with his head cut off, although he cannot move. Kakuzu sews Hidan's head back on with threads coming out of his body. Izumo and Kotetsu try to attack Kakuzu, but he manages to grab them by using his body threads. Hidan, now able to move again, returns to the circle and stabs himself with the blades of his scythe, and finally spears himself mortally wounding Asuma.

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