Thomas Mara Junior.

4 seconds sound clip from the Miracle on 34th Street (1947) movie soundboard.

You can hear this line at 01:19:18 in the Blu-ray version of the movie.

Quote context

[...]

- Your Honor, the burden of proof for this ridiculous contention clearly rests with my opponent.

- Can he produce any evidence to support his views?

- If Your Honor please, I can.

- Will Thomas Mara please take the stand?

- Who, me?

- Thomas Mara Junior.

- Hello, Daddy.

- Here you are, Tommy.

- Tommy, you know the difference between telling the truth and telling a lie, don't you?

- Gosh, everybody knows you shouldn't tell a lie, especially in court.

[...]