RV 6.18.6
स हि धीभिर् हव्यो अस्त्य् उग्र ईशानकृन् महति वृत्रतूर्ये । स तोकसाता तनये स वज्री वितन्तसाय्यो अभवत् समत्सु ॥
sa hi dhībhir havyo asty ugra īśānakṛn mahati vṛtratūrye | sa tokasātā tanaye sa vajrī vitantasāyyo abhavat samatsu ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
With holy thoughts must he be called, the Mighty, showing his power in the great fight with Vrtra. He must be called to give us seed and offspring, the Thunderer must he moved and sped to battle.
Translated by Ralph T. H. Griffith (1896)