One Piece Chapter 25, page 18: 800 LIES

Luffy and Usopp overhear Klahadore reprimanding Jango for sleeping in the middle of the street and drawing attention. Klahadore asks if Jango is prepared, and Jango replies that they can start the operation to 'assassinate Ojousama' at any time, shocking Luffy and Usopp.