Shatapatha Brahmana 9.1.1.35

9.1.1.35

nano 'stu rudrebhyo ye divīti | tadye 'muṣmiṃloke rudrāstebhya etannamaskaroti yeṣāṃ varṣamiṣava iti varṣaṃ ha teṣāmiṣavā varṣeṇa ha te hiṃsanti yaṃ jihiṃsiṣanti

[Vâg. S. XVI 64], 'Reverence be to the Rudras dwelling in the sky,'--he thereby does reverence to those Rudras who are in yonder world;--'whose arrows the rain is,' for the rain is indeed their arrows, and by the rain they injure whom they wish to injure.