One Piece Chapter 38, page 17: PIRATE FLEET

The pirates desperately beg Kuro for mercy, shouting, "CA... CAPTAIN KURO!! IF I GO BACK TO SEA I WON'T TELL ANYONE YOU'RE STILL ALIVE, SO PLEASE LET ME LIVE!!!" and "I WON'T TELL ANYONE EITHER, CAPTAIN KURO! JUST SPARE ME!!!" Luffy asks, "WHAT ARE THEY TALKING ABOUT? HE'S JUST SWAYING THERE..." Suddenly, Kuro vanishes with a massive burst of speed as the technique "SHAKUSHI" is unleashed.