Hiranyakeshigrihyasutra 2.1.1.2

2.1.1.2

prathamagarbhāyāścaturthe māsyāpūryamāṇapakṣe puṇye nakṣatregnimupasamādhāya vyāhṛtiparyantaṃ kṛtvā dhātā dadātu no rayim \ iti catasro dhātrīrjuhoti \2\

In the fourth month of her first pregnancy, in the fortnight of the increasing moon, under an auspicious constellation he puts wood on the fire, performs the rites down to the Vyâhriti oblations, and makes four oblations to Dhâtri with (the verse), 'May Dhâtri give us wealth' (and the following three verses, Taitt. Samh. III, 3, II, 2. 3).