Oh, are you doing magic? Let's see, then.
6 seconds sound clip from the Harry Potter and the Sorcerer's Stone movie soundboard.
You can hear this line at 00:38:34 in the Blu-ray version of the movie.
Quote context
[...]
- Well, you can't expect him to hang around all day, can you?
- This is Scabbers, by the way. Pathetic, isn't he?
- Fred gave me a spell as to turn him yellow. Want to see?
- Yeah.
- Has anyone seen a toad? A boy named Neville's lost one.
- No.
- Oh, are you doing magic? Let's see, then.
- Sunshine, daisies, butter mellow. Turn this stupid fat rat yellow.
- Are you sure that's a real spell? Well, it's not very good, is it?
- Of course, I've only tried a few simple ones myself... but they've all worked for me.
- For example: Oculus Reparo. That's better, isn't it?
- Holy cricket, you're Harry Potter!
[...]