The works of Ādi Śaṅkarācārya

Viṣṇusahasranāmastotram

Verse 34

ध्यायेन्नारायणं देवं स्नानादिषु च कर्मसु ।प्रायश्चित्तं हि सर्वस्य दुष्कृतस्येति वै श्रुतिः ॥

In plain words

During ritual baths and all other daily duties, one should keep Nārāyaṇa in meditation; for the sacred Śruti declares this remembrance to be the true atonement for every fault.

Close to the Sanskrit

One should meditate upon the divine Nārāyaṇa during baths and other actions; for verily the Śruti declares it to be the expiation for all wrongdoing.