大乘義章 1.78

1.78

第四門中，辨其寬狹。於中有二：一就有無辨其寬狹、二就常無常辨其寬狹。就有無者，四假之中，相待、緣成及與相續，通於有無；因生一種，局在於有。

In the fourth gate, their breadth and narrowness are distinguished. Within this, there are two aspects: first, distinguishing their breadth and narrowness in terms of existence and non-existence; second, distinguishing their breadth and narrowness in terms of permanence and impermanence. As for existence and non-existence: among the four provisionalities, mutual dependence, condition-dependent constitution, and continuity extend to both existence and non-existence; conditioned production alone is restricted to existence.