Vital point

Yashiro faced Itachi again. “Listen, Itachi,” he said, murderously. “If you
did indeed betray the clan, you will pay.”
Itachi’s body was faster than his voice, faster than his thoughts. He
launched a kick at Yashiro’s throat, caught Inabi in the face with his arm as
he whirled around, and plunged his knee into the pit of Tekka’s stomach. As
he whirled around to face forward again, the three tumbled clumsily to the
ground, and Itachi stood tall in the middle.
“Like I said, don’t judge people by appearances or preconceptions.”
Hit hard in vital points, the three men remained doubled over, unable to
move.

“You misjudge me completely if you think I have patience for you.”
Trembling, Inabi finally just barely managed to lift his head, and glare at
Itachi.

“The clan ... The clan ... ,” Itachi continued. “You babble on, but you
overestimate your abilities. And you have no idea of the depth of mine, which
is why you’re crawling right now.”

On all fours, trying desperately to stand up, Yashiro looked over his
shoulder at Itachi, and spat, “Shisui ... had been watching you
recently ... It’s been six months since you entered the Anbu ... What you’ve
said and done since then is too strange to overlook. What on earth are you
thinking?”

Book of Dark Night Chapter 6 Part 1