ChU 2.18.2
स य एवम् एता रेवत्यः पशुषु प्रोता वेद । पशुमान् भवति । सर्वम् आयुर् एति । ज्योग् जीवति । महान् प्रजया पशुभिर् भवति । महान् कीर्त्या । पशून् न निन्देत् । तद् व्रतम्
sa ya evam etā revatyaḥ paśuṣu protā veda | paśumān bhavati | sarvam āyur eti | jyog jīvati | mahān prajayā paśubhir bhavati | mahān kīrtyā | paśūn na nindet | tad vratam
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
He who thus knows these Revatis, as interwoven in animals, becomes rich in animals, he reaches the full life, he lives long, becomes great with children and cattle, great by fame. His rule is, 'Never complain of animals.'
Translated by F. Max Müller