It was my stepdad's. I stole it from his trophy room.
6 seconds sound clip from the The Sandlot (1993) movie soundboard.
You can hear this line at 00:58:15 in the Blu-ray version of the movie.
Quote context
[...]
- You feel bad 'cause you belted a homer. Now we can't play no more.
- No, you don't understand! That wasn't my ball!
- What do you mean, that wasn't your ball?
- It was my stepdad's. I stole it from his trophy room.
- It was a present or something. Somebody gave it to him.
- But we gotta get it back. He's gonna kill me!
- It's a matter of life and death.
- Where did your old man get that ball?
[...]