How did you find it?- What? No, I didn't. Toothless did. Only a dragon can find the island.

8 seconds sound clip from the How to Train Your Dragon movie soundboard.

You can hear this line at 01:05:39 in the Blu-ray version of the movie.

Quote context

[...]

- He was just protecting me! He's not dangerous.

- They've killed hundreds of us!

- And we've killed thousands of them! They defend themselves, that's all!

- They raid us because they have to. If they don't bring enough food back, they'll be eaten themselves.

- There's something else on their island. It's a dragon like...

- Their island? So you've been to the nest?

- Did I say nest?

- How did you find it?- What? No, I didn't. Toothless did. Only a dragon can find the island.

- No, no, no. No, Dad. No, please, it's not what you think. You don't know what you're up against. It's like nothing you've ever seen.

- Dad, please. I promise you, you can't win this one!

- No, Dad. No. For once in your life, would you please just listen to me?

- You've thrown your lot in with them. You're not a Viking. You're not my son.

[...]