肇論新疏 1.40

1.40

等謂平等。道謂自乘菩提。所以約人辨者，恐疑實相之外別有三乘異證，而不知三乘機器隨熏有差、所觀性空無異。故身子云：「我等同入法性。」佛讚迦葉同一解脫，亦如三獸渡河河無異水。

"Equally" means with impartiality. "The Way" means the bodhi of one's own vehicle. The reason this is distinguished in terms of persons is out of fear that people might suspect that outside of dharmatā there are separate, distinct realizations for the three vehicles, unaware that the capacities and dispositions of the three vehicles differ according to their past perfumings, but the prakṛti-śūnyatā they contemplate is without difference. Thus Śāriputra said: "We all enter into the dharmatā together." The Buddha praised Kāśyapa for sharing the same liberation, just as when three beasts cross a river, the river has no different water.