大方廣佛華嚴經隨疏演義鈔 8.21

8.21

疏「權必化實」下，次正破也。於中又二：先總奪云化有無用之失。如有定性聲聞，故菩薩化為聲聞誘令迴心，此則化而有益。今汝宗中定性決不迴心，何用化於定性而受一乘耶？故無所化之機，能化便成無用。

The Commentary states: "The provisional must transform the real..." and below; this is the second part, the direct refutation. Within this there are again two parts: first, a general deprivation, stating the fault that transformation would be useless. If there were fixed-nature śrāvakas, a bodhisattva might transform into a śrāvaka to entice them to turn their minds around; then transformation would be beneficial. Now, in your tradition, those of fixed nature definitely never turn their minds around; what purpose would be served by transforming into a fixed-nature one to accept the single vehicle? Thus, there being no capacity to be transformed, the transformer becomes entirely useless.