Rigveda 1.113.2
रुश॑द्वत्सा॒ रुश॑ती श्वे॒त्यागा॒दारै॑गु कृ॒ष्णा सद॑नान्यस्याः ।स॒मा॒नब॑न्धू अ॒मृते॑ अनू॒ची द्यावा॒ वर्णं॑ चरत आमिना॒ने॥
ruśadvatsā ruśatī śvetyāgādāraigu kṛṣṇā sadanānyasyāḥ |samānabandhū amṛte anūcī dyāvā varṇaṃ carata āmināne ||
Our plain-language meaning of this verse is waiting for scholar review.