Who said "Patience is a luxury dragons cannot afford."?

This quote is attributed to Drogon.

Patience is a luxury dragons cannot afford. - Drogon

"Patience is a luxury dragons cannot afford."

Drogon Patience

"I am fire. I am death."

"Dracarys."

"A dragon is not a slave."

"I will burn them all."

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."