अधोलोकवर्णनम् (Adholoka-varṇana) — Description of the Lower Worlds and Cosmographic Measures
तस्माद्व्यवस्थिता रात्रिः सूर्यापेक्षमहः स्मृतम् / एवं पुष्करमध्येन यदा सर्पति भास्करः
tasmādvyavasthitā rātriḥ sūryāpekṣamahaḥ smṛtam / evaṃ puṣkaramadhyena yadā sarpati bhāskaraḥ
Thus night is duly established, and ‘ahaḥ’—day—is understood in dependence upon the Sun; likewise, when Bhāskara moves gliding through the midst of Puṣkara.