仁王護國般若波羅蜜多經疏 2.16

2.16

問：即滅為同剎那、為復異世？答：然以一念有多剎那，於一剎那有多生滅。以多生滅成一剎那即體明空，故同念也。此同《華嚴》偈云「譬如長風起，鼓拂生動勢，二俱不相知，諸法亦如是。」生滅即空不相知也。從此第二徵其所以。

Question: Does "instantly ceasing" occur in the very same kṣaṇa, or in a different time period? Answer: Since there are many kṣaṇas in a single thought-moment (citta-kṣaṇa), and within a single kṣaṇa there are many arisings and ceasings, forming a single kṣaṇa out of many arisings and ceasings clarifies emptiness right within the entity; therefore they are in the same thought-moment. This is identical to the verse in the *Avataṃsaka*: "Just as when a great wind rises, / Stirring and blowing to create momentum, / The two do not know each other; / All phenomena are also like this." Arising and ceasing are instantly empty and do not know each other. Next is the second [part], inquiring into the reason.