釋禪波羅蜜次第法門 2.6

2.6

就明外方便，自有五種：第一、具五緣；第二、訶五欲；第三、棄五蓋；第四、調五法；第五、行五法。此五五凡有二十五法，並是未得禪時初修心方便之相。

Regarding the explanation of the external expedient means, there are inherently five types: first, possessing the five conditions; second, censuring the five desires; third, abandoning the five hindrances; fourth, regulating the five factors; fifth, practicing the five factors. These five sets of five comprise twenty-five practices in all, all of which are aspects of the expedient means for initially cultivating the mind when one has not yet attained dhyāna.