The works of Ādi Śaṅkarācārya

Viṣṇusahasranāmastotram

Verse 58

एकोऽपि कृष्णे सुकृतः प्रणामो दशाश्वमेधावभृथेन तुल्यः ।दशाश्वमेधी पुनरेति जन्म कृष्णप्रणामी न पुनर्भवाय ॥

In plain words

Even a single sincere prostration to Lord Krishna equals the purifying bath concluding ten horse sacrifices. Yet the performer of those ten sacrifices must return to birth, whereas one who bows to Krishna is never born again.

Close to the Sanskrit

Even one well-performed prostration to Krishna is equal to the concluding bath of ten horse sacrifices. The performer of ten horse sacrifices returns again to birth, but the prostrator to Krishna does not for worldly existence again.