大毘盧遮那經供養次第法疏 2.41

2.41

初、釋名者，能修心中所修法則了了記持，故言持也。所修法則口中能誦，故言誦也。法則者，能持因心也。所得果報畢竟不差，故言法則。言所持誦法即是法故，持業釋也。

First, explaining the title: being able to clearly remember and retain within the practicing mind the procedures that are cultivated is called "holding" (chi). Being able to recite with the mouth the procedures that are cultivated is called "reciting" (song). "Procedures" (fazhe) are the causal mind that is capable of holding. The retribution and fruit attained are ultimately never in error; therefore they are called "procedures." Saying that the dharma held and recited is itself the dharma is a karmadhāraya compound.