釋禪波羅蜜次第法門 9.58

9.58

眾生無常者，行者觀我及一切眾生從歌羅邏來，色心生滅變異，乃至老死無暫停時。所以者何？一切有為悉屬生、住、滅三相遷變，故知無常。所謂欲生異生，欲住異住，欲滅異滅，如是變易無常，剎那迅速，無暫停息，故知一切眾生悉皆無常。

Regarding the impermanence of sentient beings: the practitioner contemplates that from the stage of the kalala onward, form and mind arise, cease, and undergo transformation in oneself and all sentient beings, up to old age and death, without stopping even for a moment. Why is this? Because all conditioned things belong to the transformation of the three characteristics of arising, abiding, and ceasing, one therefore knows they are impermanent. That which is about to arise changes into arising; that which is about to abide changes into abiding; that which is about to cease changes into ceasing; changing and impermanent like this, swiftly flowing moment by moment without a moment's rest, one therefore knows that all sentient beings are entirely impermanent.