In the Samsara Grotto, Obito used Omodaru's replay of the past to watch the entire battle between Indra and Asura.
"So that's how it worked. Using Susanoo to perform Senjutsu... what a terrifying power."
Obito gazed at the Planetary Devastation hanging high above.
"And he awakened the Rinnegan immediately after absorbing Asura's power. I have to admit, genius really is an insurmountable wall. Indra's talent far surpasses Madara's and Sasuke's."
He activated Susanoo and hurled a Kamui Shuriken into the sky!
Boom! After the thunderous blast, the vortex of Rapid Absorption swallowed the fragments falling from the celestial sphere!
Asura fell to the ground through the breach in the Planetary Devastation, the Black Receivers still embedded in his body.
Obito walked over.
Asura hurriedly warned him, "Don't touch those Black Receivers! They're formed from the power of Truth-Seeking Orbs! Touch them directly, and you'll die!"
But after a moment's thought, Obito reached out anyway.
Whoosh!
Kamui sucked the Black Receivers away!
With a soft rustling, Obito's right hand, formed through Impure World Reincarnation, crumbled to dust from touching the Truth-Seeking Orbs. Before long, however, it regenerated.
Asura exclaimed in surprise, "You have this kind of body too?"
Obito said, "Indra hasn't become the Ten-Tails' Jinchūriki yet, so he can't use the Six Paths' Yin-Yang Release. That means I can still regenerate."
[Note: This is an easily confused point. Truth-Seeking Orbs are not the same as Yin-Yang Release. The definitive proof is that, in the original story, before Obito truly mastered the Ten-Tails' power, he killed the reincarnated Third Generation with Truth-Seeking Orbs, but the Third Generation still regenerated. Truth-Seeking Orbs and Yin-Yang Release are distinct. Only a perfect Ten-Tails Jinchuriki can master Yin-Yang Release, and only when Truth-Seeking Orbs are combined with Yin-Yang Release can they prevent bodies created by