RV 10.10.9
रात्रीभिर् अस्मा अहभिर् दशस्येत् सूर्यस्य चक्षुर् मुहुर् उन् मिमीयात् । दिवा पृथिव्या मिथुना सबन्धू यमीर् यमस्य बिभृयाद् अजामि ॥
rātrībhir asmā ahabhir daśasyet sūryasya cakṣur muhur un mimīyāt | divā pṛthivyā mithunā sabandhū yamīr yamasya bibhṛyād ajāmi ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
May Surya's eye with days and nights endow him, and ever may his light spread out before him. In heaven and earth the kindred Pair commingle. On Yam! be the unbrotherly act of Yama.
Translated by Ralph T. H. Griffith (1896)