One Piece Chapter 5.3, page 4: The Pirate King and the Great Swordsman

Coby weeps on the ground, fearing he will die. Zoro, still tied to the post, tells Coby to run for his life. Zoro insists he only needs to survive for a month to be freed, but Coby reveals the truth: Helmeppo never intended to keep his promise and plans to execute Zoro in three days.