Ṛgvidhāna · Chapter 2.23

vayam.u.tvā.iti.sūktam.tu.pauṣṇam.draviṇa.vardhanam./
nityam.japet.śucir.bhūtvā.dhanam.vindaty.abhīpsitam.//

yasya.naṣṭam.bhavet.kiṃcid.dravyam.gaur.dvipadam.dhanam./
naśyed.vā.adhvani.yo.mohāt.sampūṣan.sa.japen.niśi.//

iyam.ity.etad.ādy.antam.sūktam.sārasvatam.dvijaḥ./
nityam.japet.śucir.bhūtvā.vāgmī.bhavati.buddhimān.//

sam.vām.iti.tu.yat.sūktam.aṣṭa.ṛcam.traiṣṭubham.smṛtam./
taj.japan.prayato.nityam.iṣṭān.kāmānt.samaśnute.//

yo.adri.bhit.tu.yat.sūktam.tat.sapatna.nibarhaṇam./
bṛhaspatim.namas.kṛtvā.sapatnānt.stṛṇute.bahūn.//