續一切經音義 9.132

9.132

駙馬（上符遇反駙馬官名也字書副也皇偘云周穆王好養馬有人能調良者以女妻之出近天子之馬因名駙馬漢書金曰磾善掌御馬有此官名）。

駙馬 (The first character has the fanqie 符遇 [fù]. Fùmǎ is an official title. The Zishu states: 'Auxiliary.' Huang Kan states: 'King Mu of Zhou loved to raise horses; when someone could train them well, he gave him his daughter in marriage and had him accompany the Son of Heaven's horses, hence the name fùmǎ.' The Hanshu states that Jin Midi was skilled in handling the imperial horses, and this official title was instituted.).