अधोलोकवर्णनम् (Adholoka-varṇana) — Description of the Lower Worlds and Cosmographic Measures
अश्विनी कृत्तिका याम्यं नागवीथ्युदयास्त्रयः / काष्ठयोरन्तरं यच्च तद्वक्ष्येयजनैः पुनः
aśvinī kṛttikā yāmyaṃ nāgavīthyudayāstrayaḥ / kāṣṭhayorantaraṃ yacca tadvakṣyeyajanaiḥ punaḥ
Aśvinī, Kṛttikā, and Yāmya—these are the three risings of Nāgavīthī; and the interval between the two kāṣṭhas I shall again declare by the measure of yajanas.