無量壽經優婆提舍願生偈註 2.154

2.154

般若者，達如之慧名。方便者，通權之智稱。達如則心行寂滅，通權則備省眾機。省機之智備應而無知，寂滅之慧亦無知而備省。然則智慧方便相緣而動、相緣而靜，動不失靜，智慧之功也；靜不廢動，方便之力也。是故智慧、慈悲、方便攝取般若。般若攝取方便應知者，謂應知智慧方便是菩薩父母。若不依智慧方便，菩薩法則不成就。何以故？若無智慧，為眾生時則墮顛倒；若無方便，觀法性時則證實際。是故應知。

Prajñā is the name of the wisdom that penetrates suchness. Skillful means is the designation for the knowledge that masters the provisional. Penetrating suchness, the mind's activities are extinguished in tranquility; mastering the provisional, one thoroughly perceives the capacities of all beings. The knowledge that perceives capacities responds completely yet has no deliberate knowing; the wisdom extinguished in tranquility likewise has no deliberate knowing yet perceives completely. Thus, wisdom and skillful means act in mutual dependence and are still in mutual dependence. Acting without losing stillness is the efficacy of wisdom; being still without abandoning action is the power of skillful means. Therefore, wisdom, compassion, and skillful means gather in prajñā. That prajñā gathers in skillful means should be known means: one should know that wisdom and skillful means are the father and mother of a bodhisattva. If one does not rely on wisdom and skillful means, the bodhisattva's Dharmas will not be accomplished. Why is this? If one lacks wisdom, when acting for sentient beings one falls into inversion; if one lacks skillful means, when contemplating the nature of phenomena one realizes the limit of reality. Therefore, this should be known.