Sleep

So that she wouldn’t sense him, he ran down the hallway, and hid in the
room next door. And then, once he judged that her aura had passed by him,
he slipped into the dining room, and before the mother had a chance to shout
upon noticing him, he knocked her out with the sharingan. Once he had
soundlessly put her to sleep, he waited silently for the aura to return.

Book of Dark Night Chapter 6 Part 6