仁王般若經疏 2.83

2.83

"Therefore, the merit of prajñā cannot be practiced within sentient beings and yet be practiced; it cannot be practiced within the phenomena of the pañca-skandha and yet be practiced; it cannot be practiced within the objective sphere and yet be practiced; it cannot be practiced within understanding and yet be practiced. Therefore, prajñā is inconceivable. And that all buddhas and bodhisattvas practice within it is also inconceivable. That all Tathāgatas transform within illusory, non-abiding phenomena is also inconceivable."