RV 7.33.7
त्रयः कृण्वन्ति भुवनेषु रेतस् तिस्रः प्रजा आर्या ज्योतिरग्राः । त्रयो घर्मास उषसं सचन्ते सर्वां इत् तां अनु विदुर् वसिष्ठाः ॥
trayaḥ kṛṇvanti bhuvaneṣu retas tisraḥ prajā āryā jyotiragrāḥ | trayo gharmāsa uṣasaṃ sacante sarvāṃ it tāṃ anu vidur vasiṣṭhāḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Three fertilize the worlds with genial moisture: three noble Creatures cast a light before them. Three that give warmth to all attend the morning. All these have they discovered, these Vasisthas.
Translated by Ralph T. H. Griffith (1896)