You're to blame, you let him know too much.
5 seconds sound clip from the Shaolin Kung Fu Master (1978) movie soundboard.
You can hear this line at 00:35:47 in the DVD version of the movie.
Quote context
[...]
- I never expected that Chang here would turn up at such an awkward moment.
- You're to blame, you let him know too much.
- If he finds out that you are the murderer, what shall we do?
- The killers I used would never betray me.
- They might betray you and then what happens?
- All right. Yang, have you passed on my orders?
- I told them, they must never try to contact you, and to complete the mission quickly.
[...]