Yang Qian Ye

Upon hearing Du Yan's invitation, Wu Feng asked skeptically, "Sure, but you won't make me and my friend bear the cost to fuel the flying ship artifact, right? From what I know, even if it travels at the speed of a rudimentary King of Gods for a day, it'd still take 50 taels of divine rocks to fuel it."

Du Yan was slightly taken aback by Wu Feng's words. When he recovered, he said with a laugh, "Wu Yi Shan, I didn't you know you have a humorous side to you. What kind of person do you think I am? Since I have a king-grade flying ship, do you think I'll lack divine stones to fuel it? It wouldn't even be a problem to travel to the Divine Sanctuary at the speed of an advanced King of Gods."

It would take 500 taels of divine rocks to fuel the flying ship if it flew at the speed of an advanced King of Gods for a day.

Based on Du Yan's words, he clearly did not lack divine rocks.