The works of Ādi Śaṅkarācārya

Viṣṇusahasranāmastotram

Verse 534

अप्ययः ।इति नाम्नां नवमं शतं विवृतम् ॥

In plain words

Apyayaḥ. And with that, the ninth hundred of the names has been opened out.

Close to the Sanskrit

Apyayaḥ. Thus the ninth hundred of the names has been expounded.