The works of Ādi Śaṅkarācārya

Viṣṇusahasranāmastotram

Verse 397

'प्रसन्नवदनं चारु पद्मपत्रायतेक्षणम्' इति श्रीविष्णुपुराणे ।

In plain words

'His face serene, lovely, his eyes long as lotus petals' — so it stands in the Śrī Viṣṇu Purāṇa.

Close to the Sanskrit

'Whose face is serene, lovely, whose eyes are long as lotus petals' — thus in the Śrī Viṣṇu Purāṇa.