Who said "Loyalty is worth more than all the Pokémon in the world."?

This quote is attributed to Team Rocket.

Loyalty is worth more than all the Pokémon in the world. - Team Rocket

"Loyalty is worth more than all the Pokémon in the world."

Team Rocket Friendship

"Prepare for trouble, and make it double!"

"To protect the world from devastation!"

"To unite all peoples within our nation!"

"To denounce the evils of truth and love!"

"Friendship is built on trust and honesty."

"True friendship is worth more than gold."

"Good friends are like stars, always there even when you can't see them."

"Friendship means sacrifice."