Yes, milord. The Persians are approaching.
6 seconds sound clip from the 300 movie soundboard.
You can hear this line at 00:56:16 in the Blu-ray version of the movie.
Quote context
[...]
- Our Greek comrades are begging for a crack at the Persians, sire.
- Good. I've got something I think they can handle.
- Tell Daxos that I want him and 20 of his best eager, sober and ready for the next charge.
- Stelios, catch your breath, boy.
- Yes, milord. The Persians are approaching.
- A small contingent. Too small for an attack.
- Captain, I leave you in charge.
- Relax, old friend. If they assassinate me, all of Sparta goes to war.
- Pray they're that stupid. Pray we're that lucky.
- Besides, there's no reason we can't be civil... is there?
[...]