Outer Path

The Outer Path (外道, Gedō) is the ability granted to the wielder of the Rinnegan to revive the dead. Said to live outside the realm of life and death, the user could use the Outer Path: Samsara of Heavenly Life Technique to revive people that he or she had recently killed. The souls of these people would be temporarily stored in the King of Hell. During the Fourth Shinobi World War, Kabuto Yakushi made note of how he could have Nagato kill the jinchūriki temporarily, store their souls in the King of Hell and then revive them at a later time.

Trivia

 * The Ten-Tails has a unique dōjutsu that seems to allow it to use this technique, as it has been seen using the chakra chains that stem from the Outer Path.