Murong Wudi reluctantly rejected Su Mo.
He did not want to go back on his words, but he could not actually give Mountains-weight Skill to Su Mo, or he would be severely punished by his Master.
In this world, it was a big taboo to give away martial art techniques that had been bestowed by one's Master. In the best case scenario, one would be severely punished, and in the worst, expelled from his sect.
Even if he would be seen as a dishonest person, Murong Wudi could not give Mountains-weight Skill to Su Mo.
After a brief silence, Murong Wudi said, "Su Mo, although I can't give you this cultivation skill, I will pay you back with treasures equivalent to its value."
Squinting, Su Mo replied, "Murong Wudi, are you trying to go back on your own words?"
Su Mo did not want anything else as Mountains-weight Skill was too suitable for him.