The Ring came to the creature Gollum who took it deep into the tunnels of the Misty Mountains. And there it consumed him.
12 seconds sound clip from the The Lord of the Rings: The Fellowship of the Ring movie soundboard.
You can hear this line at 00:06:00 in the Blu-ray version of the movie.
Quote context
[...]
- And the Ring of Power has a will of its own.
- It betrayed Isildur to his death.
- It came to me. My own. My love. My own. My precious.
- The Ring brought to Gollum unnatural long life.
- For 500 years it poisoned his mind.
- And in the gloom of Gollum's cave, it waited.
- Darkness crept back into the forests of the world.
[...]