Try as he might,

he could not move the boat. He summoned the others, who also thrust poles into the river bed, but the boat remained unmoved. Finally, in desperation, the poler summoned Wong Wa Bo, the best poler of all, still sleeping after an unusually long performance the previous evening. Even he was unable to make a difference.
The disguised Jee Sin began to laugh, and with his foot, began to rock the boat, threatening to flood it. Wong Wa Bo realised that the man in rags before him was no beggar, but a man of exceptional power and skill. He respectfully invited Jee Sin aboard and begged to be taught the master's skills. Jee Sin taught the Red Junk Opera members his Kung Fu, which they called Weng Chun Kuen ("Everlasting Spring Boxing") to disguise its Shaolin origins. Wong Wa Bo became his prized student, one of very few to learn Jee Sin's six-and-a-half-strike pole technique.
Meanwhile, Leung Bok Cho sought a worthy student to whom to pass on the Wing Chun system. He had heard about his nephew Wong Wa Bo's reputation as a performer and martial artist, and went to a Red Junk performance to see for himself. Leung Bok Cho and Wong Wa Bo got together after the show, and it was agreed that, if Leung could beat Wong in a friendly match, the Wing Chun butterfly swords against staff, that Wong would become Leung's student and be taught the art of Wing Chun.