廣弘明集 9.101

9.101

臣笑曰。文始傳云。太上老子太一元君。此二聖亦可為一身。金液經云。太一者惟有中黃丈夫及太一君此二仙人主也。飲金液昇天為大神調陰陽矣。

Your servant laughs, saying: The Wenshi zhuan says: 'Taishang Laojun and the Primal Lord Taiyi—these two sages may also be one body.' The Jinye jing says: 'Taiyi is presided over solely by these two immortals: the Master of Central Yellow and Lord Taiyi. Drinking the golden liquor, they ascended to heaven to become great spirits and harmonize yin and yang.'