Ṛgvidhāna · Chapter 4.1

iṣṭvā.śaradi.vai.rudram.oṣadhīś.ca.yajet.tathā./
tasya.āmayā.na.bhavanti.tathā.jīrṇāni.yāni.ca.//

kriyām.tu.sapta.rātreṇa.saptakṛtvo.abhyaset.tataḥ./
prapadyeta.oṣadhīm.vipraḥ.sūktam.etaj.japant.sadā.//

dviṣat.kṣetrād.iha.āyadhvam.iti.vijñāpayeta.ca./
sva.kṣetre.varuṇam.iṣṭvā.vindate.dviṣad.oṣadhīḥ.//

vṛṣṭi.kāmo.yata.āhāraḥ.prapadyeta.bṛhaspatim./
pāyasena.upahāreṇa.homena.ca.samanvitaḥ.//

bṛhaspate.pati.ity.etad.vṛṣṭi.kāmaḥ.prayojayet./
parjanyam.ca.namas.kṛtvā.vṛṣṭim.vindati.śobhanām.//