Since you are reluctant to provide us with the location of the rebel base, I have chosen to test this station's destructive power on your home planet of Alderaan.
11 seconds sound clip from the Star Wars: Episode IV - A New Hope (1977) movie soundboard.
You can hear this line at 00:58:01 in the Blu-ray version of the movie.
Quote context
[...]
- No star system will dare oppose the emperor now.
- The more you tighten your grip, Tarkin, the more star systems will slip through your fingers.
- Not after we demonstrate the power of this station.
- In a way, you have determined the choice of the planet that will be destroyed first.
- No! Alderaan is peaceful. We have no weapons. You can't possibly...
- You would prefer another target? A military target? Then name the system.
- I grow tired of asking this, so it will be the last time.
[...]