I was feeling a bit sick. Exercise helps.
4 seconds sound clip from the Martial Arts of Shaolin movie soundboard.
You can hear this line at 00:13:55 in the Blu-ray version of the movie.
Quote context
[...]
- It's late and he is still practicing.
- He doesn't seem to be practicing.
- Teacher! Teacher, are you ill?
- How do you know that? Are you spying on me?
- No, sir! We thought you're practicing.
- I was feeling a bit sick. Exercise helps.
- Wow, that's incredible. You could do so well even when you're ill.
- It's very late, go to bed now.
- Teacher, we'll get you some medicine.
- Listen lads, we martial artists should be able to take a little pain. Go to bed.
- Let's go. I must train harder.
[...]