RV 7.12.3
त्वं वरुण उत मित्रो अग्ने त्वां वर्धन्ति मतिभिर् वसिष्ठाः । त्वे वसु सुषणनानि सन्तु यूयम् पात स्वस्तिभिः सदा नः ॥
tvaṃ varuṇa uta mitro agne tvāṃ vardhanti matibhir vasiṣṭhāḥ | tve vasu suṣaṇanāni santu yūyam pāta svastibhiḥ sadā naḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
O Agni, thou art Varuna and Mitra: Vasisthas with their holy hymns exalt thee. With thee be most abundant gain of treasure. Ye Gods, preserve us evermore with blessings.
Translated by Ralph T. H. Griffith (1896)