Gopathabrahmana 2.1.19

2.1.19

athātaś cāturmāsyānāṃ prayogaḥ
phālgunyāṃ paurṇamāsyāṃ cāturmāsyāni prayuñjīta
mukhaṃ vā etat saṃvatsarasya yat phālgunī paurṇamāsī mukham uttare phālgunyau pucchaṃ pūrve [ed. pūrva]
tad yathā pravṛttasyāntau sametau syātām evam evaitat saṃvatsarasyāntau sametau bhavatas
tad yat phālgunyāṃ paurṇamāsyāṃ cāturmāsyair yajate mukhata evaitat saṃvatsaraṃ prayuṅkte_
atho bhaiṣajyayajñā vā ete yac cāturmāsyāni
tasmād ṛtusaṃdhiṣu prayujyante_
ṛtusaṃdhiṣu vai vyādhir jāyate
tāny etāny aṣṭau havīṃsṣi bhavanti
aṣṭau vai catasṛṇāṃ paurṇamāsīnāṃ havīṃṣi bhavanti
catasṛṇāṃ vai paurṇamāsīnāṃ vaiśvadevaṃ samāsaḥ_
atha yad agniṃ manthanti prajāpatir vai vaiśvadevam_
prajātyā eva_
athaitaṃ daivaṃ garbhaṃ prajanayati_
atha yat saptadaśa sāmidhenyaḥ saptadaśo vai prajāpatiḥ
prajāpater āptyai
atha yat sadvantāv ājyabhāgāv asisaṃtīti vai sadvantau bhavataḥ_
atha yad virājau saṃyājye annaṃ vai śrīr virāḍ annādyasya śriyo 'varuddhyai_ [ed. 'varuddhyā 'tha]
atha yan nava prayājā navānuyājā aṣṭau havīṃṣi vājinaṃ navamaṃ tan nakṣatrīyāṃ virājam āpnoti_
atho āhur daśanīṃ virājam iti prayājānuyājā havīṃṣy āghārāv ājyabhāgāv iti || 19 ||