The works of Ādi Śaṅkarācārya

Viṣṇusahasranāmastotram

Verse 101

इति भविष्यत्पुराणे श्रीमहेश्वरवचनम् ।

In plain words

Thus runs the utterance of Lord Maheśvara in the Bhaviṣyat Purāṇa.

Close to the Sanskrit

Thus is the utterance of the blessed Maheśvara in the Bhaviṣyat Purāṇa.