The Emperor will stop you.
4 seconds sound clip from the Mulan (1998) movie soundboard.
You can hear this line at 00:26:22 in the Blu-ray version of the movie.
Quote context
[...]
- What makes you think you're comin'? You're lucky? Do I look like a sucker to you?
- Shan-Yu.
- Nice work, gentlemen. You found the Hun army.
- Stop me? He invited me. By building his wall, he challenged my strength.
- Well, I'm here to play his game.
- Go! Tell your Emperor to send his strongest armies. I'm ready.
- How many men does it take to deliver a message?
- One.
[...]