Who did Hu Bayi learn from to find the dragon?

Hu Bayi learned dragon hunting tactics from his uncle. According to the relevant information inquired: Uncle Mo Jin dug up the whole image of sixteen-character divinatory symbols from an ancient tomb according to the relevant information inquired, and combined with Mo Jin's patented product "dragon-seeking tactic", he wrote the sixteen-character Yin-Yang Feng Shui cheats, from which Hu Bayi learned.