Hiranyakeshigrihyasutra 1.7.24.3

1.7.24.3

atraivodapātraṃ nidhāya pradakṣiṇamagniṃ parikramyāpareṇāgniṃ prācīmudīcīṃ vā saṃveśyāthāsyai yonimabhimṛśati \ abhi tvā pañcaśākhena śivenāvidviṣāvatā \ sāhasreṇa yaśasvinā hastenābhimṛśāmasi suprajāstvāya \ iti \3\

There (near the sacrificial fire) he places a water-pot, walks round the fire (and that water-pot) keeping his right side turned towards it, makes (the wife) lie down to the west of the fire, facing east or north, and touches her secret parts, with (the formula), 'We touch thee with the five-forked, auspicious, unhostile (?), thousandfoldly blessed, glorious hand that thou mayst be rich in offspring!'