《搜神记·卷四》
秦始皇三十六年，使者郑容从关东过来，要进函谷关。他向西走到华阴县，远远望见白车白马从华山顶上下来。
秦始皇三十六年，使者郑容从关东来，将入函关，西至华阴，望见素车白马，从华山上下。
In the thirty-sixth year of the reign of Emperor Qin, an envoy named Zheng Rong came from Guandong and wanted to enter Hangu Pass. He walked west to Huayin County, and saw from a distance a white-carriage and white-horse descending from the top of Mount Hua.