妙法蓮華經玄贊 4.124

4.124

三事稱大般，但得解脫言入城，二空智名牛，但得生智上羊鹿。

The three matters are called the Great Parinirvāṇa; merely attaining liberation is called entering the city. The wisdom of the twofold emptiness is called the ox cart; having merely attained the wisdom of life, they board the goat and deer carts.