Who said "A true bond is forged not in words but in shared struggle"?

This quote is attributed to Drogo.

A true bond is forged not in words but in shared struggle - Drogo

"A true bond is forged not in words but in shared struggle"

Drogo Friendship

"I am the stallion who mounts the world"

"A Dothraki hears a word and takes it as a command"

"You are of my blood. That is enough"

"I will take what is mine with fire and blood"

"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."