Because you killed Pai Mei!
4 seconds sound clip from the Clan of the White Lotus movie soundboard.
You can hear this line at 00:34:08 in the DVD version of the movie.
Quote context
[...]
- Ah, I'm sorry, the chief is not available. Please come some other time.
- Hung Wen-Ting is here! Hung Wen-Ting is here!
- The Shaolins have settled all their debts with you. Then why you?
- That had nothing to do with the Shaolin warriors. They're innocent and hardworking men.
- Instead of letting them go, you killed them all. You cruel bastard! Have you got no compassion?
- My uncle was right. No peace till you're dead.
- Hmm, I can see you've been practicing Crane Style.
[...]