RV 10.64.8
त्रिः सप्त सस्रा नद्यो महीर् अपो वनस्पतीन् पर्वतां अग्निम् ऊतये । कृशानुम् अस्तॄन् तिष्यं सधस्थ आ रुद्रं रुद्रेषु रुद्रियं हवामहे ॥
triḥ sapta sasrā nadyo mahīr apo vanaspatīn parvatāṃ agnim ūtaye | kṛśānum astṝn tiṣyaṃ sadhastha ā rudraṃ rudreṣu rudriyaṃ havāmahe ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
The thrice-seven wandering Rivers, yea, the mighty floods, the forest trees, the mountains, Agni to our aid, Krsanu, Tisya, archers to our gathering-place, and Rudra strong amid the Rudras we invoke.
Translated by Ralph T. H. Griffith (1896)