Quote
"O Maruts, you raise up rain from the [and] cause-to-rain."

Mandala 5
Mandala 5
The fifth Mandala of the Rigveda has 87 hymns. Most hymns in this book are attributed to the Atri family. The mandala is one of the "family books", the oldest core of the Rigveda, which were composed in early vedic period(1500-1000 BCE).
"O Maruts, you raise up rain from the [and] cause-to-rain."
"That is the great magic power of this divine greatest seer, Varuna, that no one can challenge, when the diverse flowing streams cannot fill the one ocean with their water."
"Agni born shone out slaying the Dasyus, the darkness by the Light; he found the Cows, the Waters, Swar."
"And let the patrons of our rites subdue all regions of the earth."
"As the wind, as the wood, as the sea stirs."