Agniveshyagrihyasutra 3.4.3.1

3.4.3.1

yadyāhitāgnirbhavati apa naḥ śośucadagham ityaṅguṣṭhabandhaṃ visṛjya patnyudakumbhamādāyādhvaryurvā śīrṣannadhinidhāya trirapasalaiḥ pariṣiñcan paryeti \

If he is an Āhitāgni, having untied the binding of the big toes with: "May it burn away our sin," the wife or the Adhvaryu, taking a water jar and placing it upon the head, walks around three times counter-clockwise, circum-pouring water.