What does it mean to have three yuan in arms? Where did it come from?

"Breaking three arms" means that a person falls off a horse and hurts his arm. You can also call it a loyal minister.

This code is from Shi Shuo Xin Yu? Interpretation: "People are related to yang hu's father's tomb, and then go out at your command. He only hated his own words, so he dug a broken tomb to ruin his situation. The spectator said,' You have to pay three yuan to break your arm.' Suddenly, I fell off my horse and broke my arm. The fruit was the highest. "

Yang Hucheng, a Jin native, is an uncle. During the Three Kingdoms period, at the end of Wei, he was a lieutenant in Ren Xiangguo and held the power of the imperial court. After the establishment of the Western Jin Dynasty, yang hu was named as the great emperor and was in charge of Jingzhou military affairs for more than ten years. During his tenure, he vigorously reclaimed wasteland, stored rations, and planned to attack and destroy Wu Dong. He is generous, supportive and deeply loved by the people.

When yang hu was commander-in-chief of Xiangyang, a Feng Shui gentleman visited yang hu's father's grave, saying that from his Feng Shui, one day there would be an emperor in the sheep family, who was destined by heaven. Yang hu hated this prediction, so he dug up the soil behind the tomb and destroyed the original geomantic omen in the cemetery. It is said that when digging a grave, I found a child of five or six years old, dignified and beautiful, very cute. After the grave was dug, the child disappeared. However, Mr. Feng Shui looked at it for a while and said, "This kind of Feng Shui can still get a three-fold arm." Soon, yang hu, who is good at riding, fell off his horse and broke his arm. Then, his official position rose to three high positions. Scholars all lamented yang hu's loyalty.