What episode of the Tang Priest Contest?

In episode 15, three monsters are defeated by battle.

The four of them came to Church. The king reused three Taoist priests, Tiger force big fairy, Luli big beetle and Yang Lixian, and appointed them as national teachers. They bully monks and oppress them. Wukong is very unfair, designing to play with Buddhists. Wukong, Pig and Friar Sand sneaked into Sanqing Hall, and the three of them sat in the shrine and enjoyed the offerings. Three Buddhist teachers thought Sanqing was a saint and prayed for eternal life. Wukong, Bajie and Friar Sand gave urine as holy water to three Buddhist teachers.

Tang priest and his disciples went to change Guan Wen, and the story of three Buddhists was difficult. The Monkey King, Tang Priest, three demons fought, and finally the three demons were destroyed.

Tang Priest, a layman surnamed Chen, is from Luoyang, Henan. Nicknamed "Xuanzang", he was honored as "Master Sanzang". He is called "Tang Priest" and nicknamed "Jiang Liuer" in the secular world. A protagonist in China's classic The Journey to the West is based on Xuanzang, a monk in the Tang Dynasty.

Tang Priest, a second disciple of the Tathagata in his previous life, was demoted to the lower bound by the Tathagata because of his neglect of Buddhism. Under the guidance of Guanyin Bodhisattva, he went to the Western Heaven, not far from Wan Li, to learn Buddhist scriptures at the behest of Emperor Taizong. On the way, I received three apprentices, the Monkey King, Zhu Bajie and Sha Wujing. After eighty-one difficulties, he finally got the true scriptures, returned to the Tang Dynasty, and was crowned as the "Buddha of Tan Gongde" by the Tathagata Buddha.