釋氏稽古略 1.72

1.72

指南車　黃帝蚩尤戰。蚩尤為大霧。軍士皆迷。黃帝作指南車以示四方。遂擒蚩尤殺之　有熊國　今河南新鄭是也（史記）。

The South-Pointing Chariot: When the Yellow Emperor fought Chiyou, Chiyou created a thick fog, and the soldiers all became lost. The Yellow Emperor constructed the South-Pointing Chariot to indicate the four directions, and thereupon captured and killed Chiyou. The state of Youxiong: this is modern Xinzheng in Henan (Shiji).