Agniveshyagrihyasutra 2.5.6.6

2.5.6.6

yajamānasyathaināṃ striyamāhūya tattvamasi jyotirasi viśveśānaṃ gatā nāmadā iti amāvāsyāyāṃ paurṇamāsyāmayanadvaye ca vyatīpāte viṣuve tiṣyarohiṇyāṃ śravaṇāyāṃ tasyā janmani ṛtusnātāyām ahataṃ vāsaḥ paridhāpya hiraṇyamācāryāya dattvākliṣṭāni vāsāṃsi paridhāyācamya gandhaśuklapuṣpairalaṅkṛtya atha devayajanollekhanaprabhṛtyagnimupasamādhāya saṃparistīrya sapta te agne samidhaḥ sapta jihvā saptaṛṣayaḥ sapta dhāma priyāṇi iti strīṣu dakṣiṇopaviśya paridhānaprabhṛtyāgnimukhāt kṛtvā pakvāt puruṣasūktena juhuyāt \

Then having summoned that woman of the sacrificer [with the verse]: "You are that, you are light, you who have gone to the Lord of All, the bestower of names...", on the new-moon day, on the full-moon day, at the two solstices, at the Vyatīpāta conjunction, at the equinox, under the Tiṣya, Rohiṇī, or Śravaṇā asterism, or on her birth [asterism], when she has bathed after her menstrual period, having made her put on an unwashed garment, having given gold to the teacher, having put on clean garments, having sipped water, having adorned [himself and her] with perfume and white flowers, then having performed [the rites] from the drawing of lines on the sacrificial area up to setting up the fire, having strewn [grass] all around with: "Seven are your kindling sticks, O Agni, seven your tongues, seven the sages, seven the beloved abodes...", having seated [her] to the south among the women, having performed [the rites] from the putting on of fuel up to the face of the fire, he should offer from the cooked [food] with the Puruṣasūkta.