The White Dragon Horse, known as Bai Long Ma (Chinese: 白龍馬; pinyin: Bái Lóng Mǎ; Wade–Giles: Pai² Lung²-ma¹; lit.
'White Dragon Horse'), and Yü Long (Chinese: 玉龍; pinyin: Yù Lóng; Wade–Giles: Yü⁴ Lung²; lit.
[1] He is Tang Sanzang's steed who later became one of the Babu Tianlong Guangli Bodhisattva (Chinese: 八部天龍廣力菩薩; pinyin: Bābù Tiānláng Guǎnglì Púsà; Wade–Giles: Pa¹-pu⁴ T'ien¹-lung² Kuang³-li⁴ P'u²-sa⁴; lit.
The dragon prince was spared from death and banished to Yingchou Stream (鷹愁澗) in Shepan Mountain (蛇盤山), on the instruction to wait there for a monk Guanyin is to send on a pilgrimage to the Buddha.
He escapes to inform Zhu Bajie, who in turn brings back Sun Wukong to save Tang Sanzang.