And he says he wants you cruds to cut out all swearing during yuletide.

3 seconds sound clip from the Stalag 17 movie soundboard.

You can hear this line at 00:47:32.792 in the Blu-ray version of the movie.

Quote context

[...]

- It's amazing. Fifty million guys running around loose back home and all those dames want is Sugar Lips Shapiro.

- Plews.

- Here.

- Bauer.

- Here.

- Mckay.

- Yo.

- Agnew.

- Here.

- Here, Kuzawa.

- Yeah.

- Give this to Joey, will you?

- Hey, is that all the mail?

- All right, at ease. At ease. Here's a little something from Father Murray. One to each barrack.

- And he says he wants you cruds to cut out all swearing during yuletide.

- How'd he get those trees?

- I don't know. Prayed, I guess. They grew out of his mattress.

- Come on, Steve.

- Hey. What do we do for decorations?

- For that you got to pray yourself.

- And so, Joey, we do hope that you will finish that last year of law school when you come back home.

[...]