What is the episode of Xiahou drawing a sword in front of the emperor at night?

Episode 59. In "The Night" 59, Xiahou drew his sword and cut his palm with his left hand, and blood immediately dyed his sleeve red. Ceng Jing shouted that Sang Sang wanted to stop Que Ning, because cutting his palm with his left hand meant that a duel must be divided into life and death. Sang Sang stood still, and Que Ning's blood dripped on the challenge book and flew to me. "The Night", produced by Golden Media, tells the story of Que Ning, a frontier soldier in the Tang Dynasty, who came to the Imperial City with a little maid, Sang Sang, and after some efforts, he was admitted to an institution of higher learning and stepped into the ranks of the world's strongest.