- Claus. Claus?
- Your real name. You must use it now.

9 seconds sound clip from the Santa Claus Is Comin' to Town (1970) movie soundboard.

You can hear this line at 00:41:41.758 in the Blu-ray version of the movie.

Quote context

[...]

- Well, since I'm a Kringle, I had to grow one sooner or later.

- So that's why he has whiskers.

- Ah, but you should not use your Kringle name. It's dangerous!

- Not call myself Kringle? What other name would suit me?

- There is one. You were wearing this when we found you as a baby. See what it says.

- Claus. Claus?

- Your real name. You must use it now.

- I knew it, I knew it! That's where he got his name from.

- And it was that name he asked Jessica to share. It was that name Jessica agreed to take as his wife.

- Jessica? Oh, she became Mrs. Santa Claus.

- It was a lovely wedding. Yes, sir. They held it on Christmas Eve and since no town would welcome them, they stood before the Lord in the silent winter woods, and a grove of pine trees was their cathedral.

[...]