Agniveshyagrihyasutra 2.4.1.4

2.4.1.4

yathā purastād brāhmaṇānannena pariviṣya puṇyāhaṃ svastyayanamṛddhimiti vācayitvāhataṃ vāsaḥ paridhāyāpa upaspṛśya devasya tvā ityagnimādāya parilikhitam iti triḥ pradakṣiṇaṃ parilikhya yathārtham avaṭān khātvābhyantare pāṃsūn karoti \

As previously described, having served the Brahmins with food, having made them recite [the benedictions of] the auspicious day, safe journey, and prosperity, having put on an unwashed garment, having touched water, having taken the fire with "At the god's...", having scratched around it three times clockwise with "[The perimeter] is marked out...", and having dug pits as required, he places the earth inside.