One Piece Chapter 1.1, page 48: Romance Dawn (Version 1)

A flash-forward panel shows an adult Luffy standing proudly on the deck of a large pirate ship, surrounded by his crew members (including prototype designs of a swordsman, a female navigator, and a sniper). The crew shouts, "CAPTAIN! CAPTAIN!" and "AN ISLAND! WE'VE SPOTTED AN ISLAND!". Luffy grins and adjusts his straw hat, replying, "YEAH, THEN... LET'S LAND."

STRAW HAT LUFFY'. THE NAME OF THAT PIRATE......GAINING FAME IN THIS SEA......IS A STORY FOR ANOTHER TIME. Fin".