Who said "True friends are those who stand in the fire with you."?

This quote is attributed to Drogon.

True friends are those who stand in the fire with you. - Drogon

"True friends are those who stand in the fire with you."

Drogon Friendship

"I am fire. I am death."

"Dracarys."

"A dragon is not a slave."

"I will burn them all."

"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."