2. Original: Emperor Zhao ascended the throne, and for several years, Xiongnu and Han were close relatives. Han asked for martial arts, etc., and Xiongnu bullied him. The envoys of the later Han Dynasty returned to Xiongnu, and Chang Hui invited them to keep pace with the defenders, so as to meet the envoys of the Han Dynasty at night and come from Chen Dao. The emissary said Khan, saying that the son of heaven shot the goose in the forest, which was full of martial arts in silk script of a river. The messenger was overjoyed and made Khan say a good word. Khan looked around and was surprised. The ambassador said, "Wu equals reality."
Emperor Zhao of Han Dynasty ascended the throne, and a few years later, the Xiongnu and Han reached a peace agreement. Hanting looked for Su Wu and others, and Xiongnu lied that Su Wu was dead. Later, the Han envoy went to Xiongnu again, and Chang Hui asked the guards to accompany him. At night, he met an envoy of the Han nationality and truthfully told the story of his stay in Xiongnu for several years.
4. Ask the ambassador to tell him: "The son of heaven is shooting geese in Shanglinyuan, saying that Su Wu and others are in Beihai." Han emissary was very happy, so he asked Khan according to the method Chang Hui taught him. Khan looked at the people around him and was very surprised. He apologized to Ambassador China and said, "Su Wu and others are really alive."