續一切經音義 2.141

2.141

駕駟（上古訝反切韻駕乘也毛詩云駕我其𮩴下息利反四馬共乘也爾雅曰天駟房也郭璞注云龍為天馬故房四星謂之天駟李淳風注天文經云天駟一名天馬二星為右服右驂二星為左服左驂也馬文句反）。

駕駟 (yoking a team of four: the first character is *g[ǔ]-y[à]* fan; the Qieyun states: “駕 means to ride/drive.” The Mao Shi says: “駕我騏𮩴 (I yoke my piebald and bay steeds).” The second character is *x[ī]-l[ì]* fan; four horses harnessed together. The Erya says: “The Heavenly Four-Horse Team (Tiansi) is Fang (the Room constellation).” Guo Pu's commentary says: “The dragon is the heavenly horse, hence the four stars of Fang are called Tiansi.” Li Chunfeng's commentary on the Tianwen jing says: “Tiansi is alternatively named Tianma (Heavenly Horse); two stars are the right shaft horse and right outside trace horse, and two stars are the left shaft horse and left outside trace horse.” 馬 is pronounced *w[én]-g[òu]* fan).