I'm a sick man. I've got a bad heart. I mustn't talk anymore.

5 seconds sound clip from the Beat the Devil (1953) movie soundboard.

You can hear this line at 01:22:32 in the Blu-ray version of the movie.

Quote context

[...]

- In point of fact, we had letters from the prime minister and the queen telling everyone to be particularly courteous to us and our friends.

- So you see, if any harm befalls us at your hands, it will become a major international incident.

- Would you instruct that one that in my country, a female's lips may move, but her words are not heard.

- Oh, Harry. Harry. If only you were here.

- And, now, sir, you will stop abusing my intelligence and tell me who you really are and what is your actual purpose in being here.

- I'm a sick man. I've got a bad heart. I mustn't talk anymore.

- You refuse to answer. That is interesting.

- It makes a little contest... A contest in a game at which we excel.

- We of this country have had 4000 years' experience in asking questions and getting answers.

- Who are you? Why are you here?

[...]