Kaushitakagrihyasutra 1.12.8

1.12.8

puṣyeṇa śravaṇena vā somāṃśuṃ peṣayitvā kuśadaṇḍakaṃ vā nyagrodhasya vā skandhasyāntyāṃ śuṅgāṃ yūpasyāgniṣṭāṃ vā saṃsthite vā yajñe juhvaḥ saṃsrāvam \ agninā rayim tannasturīyam samiddhāgnirvanavat piśaṅgarūpaḥ iti catasṛbhirante svāhākārābhiḥ nasto dakṣiṇato niṣiñcet \\8\\

Under the constellation Puṣya or Śravaṇa, having pounded a shoot of Soma, or a stalk of kuśa grass, or the last twig of a branch of a banyan tree, or the part of the sacrificial post facing the fire, or, when a sacrifice has ended, the drippings of the ladle, he should pour it into the right nostril with the four [verses beginning] ‘Wealth by Agni’ (agninā rayim), ‘That fourth of ours’ (tan nasturīyam), ‘With kindled fire may he win’ (samiddhāgnir vanavat), ‘Of yellowish-brown form’ (piśaṅgarūpaḥ), ending with the word ‘svāhā’.