瑜伽論記 2.212

2.212

第四示正義中，三世各有十二相，未來中，可生法者，緣未差故。不可生法者，緣差不生也。應可求者示果。不應求者，苦果也。正行應觀察，邪行不應觀察也。

Fourth, in presenting the correct meaning: each of the three times has twelve characteristics. In the future, that which ‘can be produced’ is because conditions are not deficient. That which ‘cannot be produced’ is because conditions are deficient and it is not produced. That which ‘should be sought’ shows the fruit. That which ‘should not be sought’ is the fruit of suffering. Proper practice should be observed, and improper practice should not be observed.