CHĀNDOGYA UPANISHAD · 3.3.2

तानि वा एतानि सामान्य् एतं सामवेदम् अभ्यतपन् ।
तस्याभितप्तस्य यशस् तेज इन्द्रियं वीर्यम् अन्नाद्यं रसो ऽजायत ॥

tāni vā etāni sāmāny etaṃ sāmavedam abhyatapan ।
tasyābhitaptasya yaśas teja indriyaṃ vīryam annādyaṃ raso ’jāyata ॥

Those very Sâman verses (as bees) brooded over the Sâma-veda sacrifice; and from it, thus brooded on, sprang as its (nectar) essence, fame, glory of countenance, vigour, strength, and health.

F. Max Müller · The Upanishads, Sacred Books of the East 1 (1879)