法華玄義釋籤 7.34

7.34

不然。正由能知往因無常，故往因滅方能了現果無常，故破壞現果，以破壞現果故不造現因，方乃不招未來世果，乃至逆滅尋之可知。

It is not so. Precisely because one can know that past causes are impermanent, once past causes perish one can then understand that present fruits are impermanent, and thereby shatter present fruits. Because one shatters present fruits, one does not create present causes, and only then does one not incur the fruits of future lifetimes. And so on up to reverse perishing, which can be understood by examining it.