RV 10.66.6
वृषा यज्ञो वृषणः सन्तु यज्ञिया वृषणो देवा वृषणो हविष्कृतः । वृषणा द्यावापृथिवी ऋतावरी वृषा पर्जन्यो वृषणो वृषस्तुभः ॥
vṛṣā yajño vṛṣaṇaḥ santu yajñiyā vṛṣaṇo devā vṛṣaṇo haviṣkṛtaḥ | vṛṣaṇā dyāvāpṛthivī ṛtāvarī vṛṣā parjanyo vṛṣaṇo vṛṣastubhaḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Strong be the sacrifice, strong be the Holy Ones, strong the preparers of oblation, strong the Gods. Mighty be Heaven and Earth, true to eternal Law, strong be Parjanya, strong be they who laud the Strong.
Translated by Ralph T. H. Griffith (1896)