Who said "The best reward isn't money; it's friendship."?

This quote is attributed to Scooby-Doo.

The best reward isn't money; it's friendship. - Scooby-Doo

"The best reward isn't money; it's friendship."

Scooby-Doo Friendship

"Scooby-Dooby-Doo, where are you?"

"Ruh-roh!"

"Like, zoinks!"

"Let's split up, gang!"

"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."