RV 1.34.8
त्रिर् अश्विना सिन्धुभिः सप्तमातृभिस् त्रय आहावास् त्रेधा हविष् कृतम् । तिस्रः पृथिवीर् उपरि प्रवा दिवो नाकं रक्षेथे द्युभिर् अक्तुभिर् हितम् ॥
trir aśvinā sindhubhiḥ saptamātṛbhis traya āhāvās tredhā haviṣ kṛtam | tisraḥ pṛthivīr upari pravā divo nākaṃ rakṣethe dyubhir aktubhir hitam ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Thrice, O ye Asvins, with the Seven Mother Streams; three are the jars, the triple offering is prepared. Three are the worlds, and moving on above the sky ye guard the firm-set vault of heaven through days and nights.
Translated by Ralph T. H. Griffith (1896)