So tell them, we let you live so you could spread the word through the ranks what's going to happen to every Nazi we find.
8 seconds sound clip from the Inglourious Basterds movie soundboard.
You can hear this line at 00:36:10 in the Blu-ray version of the movie.
Quote context
[...]
(In German) How did you survive this ordeal?
(In German) You are not to tell anybody anything. Not one word of detail!
(In German) Your outfit was ambushed, and you got away! Not one word more!
(In German) Did they mark you like they did the other survivors?
(In German) Yes, my Fuhrer. (2)
[...]