The Promise of a Lifetime (一生の約束, Isshō no Yakusoku) is chapter 183 of the Naruto manga.
Before the Sasuke Retrieval Team departs, Shikamaru asserts his leadership and establishes a basic approach to how the mission will be carried out. Despite the frantic nature of the mission, the team can find no faults with his plan. Sakura stops them before they leave and pleads with Naruto to bring Sasuke home, believing that he is now the only person capable of getting through to him. Naruto vows to do so. Elsewhere the Sound Four inform Sasuke of a task given to them by Orochimaru.