Shaolin monks don't use swords, and you're a skillful swordsman. You're no amateur. I'll wager you've never seen Shaolin.
9 seconds sound clip from the The Legendary Strike movie soundboard.
You can hear this line at 00:07:08.705 in the Blu-ray version of the movie.
Quote context
[...]
- We paid a lot of money to buy the Buddha's sacred relic to take back to Japan. You dare rob us?
- Well, you can't have it. It has to stay in China.
- Let me ask you. Who are you?
- Ha. Maybe you fooled him, but not me though.
- Well, like you, I'm after the Buddha's relic. What do you think?
- Don't believe you. And why should I?
- You're pretty confident. But maybe I'll surprise you.
- Still, if you can beat me, then that relic is yours.
[...]