金光明經文句記 5.164

5.164

二、「又此」下，約三業釋，二：初、釋。言一往者，既智境正外傍顯此義故也。散脂今就密名顯本，本密必三，謂身口意。若其不爾，何能示現神將三業令眾不知？故未顯本。前非同證者，皆不能測，此乃三密使之然也。

Second, from "Also this" downward, explains in terms of the three karmas, in two: first, explaining. Speaking of "provisionally" is because, beyond wisdom, object, and correctness, this meaning is shown by the way. Saṃjñāya now reveals the origin in terms of the secret name; the secret of the origin must be three, namely body, speech, and mind. If it were not so, how could he manifest the three karmas of a spirit general and keep the assembly unaware? Therefore, before the origin was revealed, those who had not attained the same realization could not fathom it; it was the three secrets that made it so.