Agniveshyagrihyasutra 2.5.9.3

2.5.9.3

parisamūhyāpo 'bhyukṣya pañcagavyena darbhamuṣṭinā samprokṣya sarṣapān saṃprakīryāgnimukhāt kṛtvā madhye vāstoṣpate vāstoṣpate iti dve āhutī hutvā sāvitryā sahasraṃ juhuyāt \

Having swept up around, sprinkled water, thoroughly sprinkled with the five products of the cow using a fistful of darbha grass, and scattered mustard seeds, and having performed [the rites] up to the face of the fire, he should offer in the middle two oblations with "O Lord of the dwelling, O Lord of the dwelling!" and then offer a thousand [oblations] with the Sāvitrī verse.