That Person's Name is…!! (その者の名は…!!, Sono Mono no Na wa…!!) is chapter 139 of the Naruto manga.
Two cloaked individuals look upon a devastated Konoha. Two days after the failed invasion of Konoha, a funeral for the Third Hokage is held. Iruka comforts the Third's grandson, Konohamaru, and reflects on his own experiences with the Third; when Iruka was upset by the death of his parents, the Third assured him that they and all others who die in the village's service live on so long as Konoha exists. Kakashi and Yūgao visit the Memorial Stone in memory of others that have died before going to the ceremony. Jiraiya watches them and thinks about his time under the Third's tutelage, shedding a tear over how perverted he and his master were. Naruto asks Iruka why people die to protect others, to which Iruka responds it is human nature. Agreeing, Naruto leaves with the rest of Team 7 and Iruka remarks that the Third will inevitably be replaced by someone else who is an equally great Hokage.
The front-cover for this chapter where Naruto and Team 7 are running in the sunset is the exact same thing for the Naruto: Ultimate Ninja ending credits.