RV 8.40.8
या नु श्वेताव् अवो दिव उच्चरात उप द्युभिः । इन्द्राग्न्योर् अनु व्रतम् उहाना यन्ति सिन्धवो यान् सीम् बन्धाद् अमुञ्चतां नभन्ताम् अन्यके समे ॥
yā nu śvetāv avo diva uccarāta upa dyubhiḥ | indrāgnyor anu vratam uhānā yanti sindhavo yān sīm bandhād amuñcatāṃ nabhantām anyake same ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
The Two refulgent with their beams rise and come downward from the sky. By Indra's and by Agni's behest, flowing away, the rivers, run which they released from their restraint.
Translated by Ralph T. H. Griffith (1896)