法華經義記 2.53

2.53

問者言：「實智所照之境乃有四一，則長有理一；說權智所照之境便應有四三，今者何故無有三理，只有三三也？」解釋者言：「昔日若有三理者，便應是實有三，何謂於一佛乘方便說三？故知昔日教下無有三理。下經文言『但以假名字引導於眾生』，若言三教下實有三理者，便應言以實名字引導眾生，何謂言但以假名字乎？」

The questioner asks: "The objective realm illuminated by real wisdom has four unities, so it additionally has the unity of principle; the objective realm illuminated by provisional wisdom that is preached should then have four triads. Why is there no triad of principles now, but only three triads?" The commentator replies: "If there had been three principles in the past, there should truly have been three [vehicles]; how could it be said that 'within the one Buddha vehicle, he expediently preaches three'? Therefore we know that under the former teaching there were no three principles. The sūtra text below says, 'Merely with provisional names does he guide sentient beings.' If one said that under the three teachings there were truly three principles, it should have said 'with real names he guides sentient beings'; why would it say 'merely with provisional names'?"