淨名經集解關中疏 2.223

2.223

象馬五通馳。大乘以為車。調御以一心。遊於八正路　肇曰。五通為象馬。大乘為上車。一心為御者。遊於八正道。

"Elephants and horses of the five superknowledges gallop,
With the Mahāyāna as the carriage,
Driven with a single mind,
Roaming along the eightfold noble path." Zhao says: "The five superknowledges are the elephants and horses; the Mahāyāna is the superior carriage; the single mind is the driver; roaming along the eightfold noble path."