What is the Business Scrub password in Zelda Ocarina of Time?

Getting the Business Scrub password in The Legend of Zelda: Ocarina of Time remake is one of the trickier side quests you can tackle. It involves a bit of time travel, which means finding the password is something you can't do until roughly the middle of the game. However, it's worth the trouble, as the entrepreneurial little scrub has a very important item for you.