大乘起信論廣釋卷第三．四．五 4.121

4.121

論。所謂一切至境界滅　釋曰。此結也。所謂等者。此明情有。若心已下後顯理無。既一切法情有理無。故知虛空非常遍有。

[Treatise:] That is to say, all [... the objective spheres cease].
[Commentary:] This is the conclusion. 'That is to say, and so forth': this clarifies existence in conception. 'If mind...' and below subsequently reveals non-existence in principle. Since all dharmas exist in conception and are non-existent in principle, one knows that empty space is not permanently and omnipresently existing.