楞伽阿跋多羅寶經註解 1.598

1.598

「大慧！我第一義常不思議第一義因相成，離性非性，得自覺相故有相，第一義智因故有因，離性非性故。譬如無作虛空，涅槃滅盡故常。如是大慧！不同外道常不思議論。如是大慧！此常不思議，諸如來自覺聖智所得如是，故常不思議自覺聖智所得應當修學。」

"Mahāmati, my ultimate permanence and incomprehensibility are established by the causal lakṣaṇa of the ultimate: they are free from being and non-being; having attained the lakṣaṇa of self-realisation, they therefore have a lakṣaṇa; and being caused by ultimate wisdom, they therefore have a cause, because they are free from being and non-being. It is just as unconditioned space and nirvāṇa are permanent through cessation. In this way, Mahāmati, it is not like the tīrthikas' theories of permanence and incomprehensibility. In this way, Mahāmati, this permanence and incomprehensibility are thus attained by all Tathāgatas through pratyātmāryajñāna; therefore, one should train in the permanence and incomprehensibility attained through pratyātmāryajñāna."