अधोलोकवर्णनम् (Adholoka-varṇana) — Description of the Lower Worlds and Cosmographic Measures
सुखा नाम पुरी रम्या वरुणस्यापि धीमतः / वरुणो यादसां नाथस्सुखाख्ये वसते पुरे
sukhā nāma purī ramyā varuṇasyāpi dhīmataḥ / varuṇo yādasāṃ nāthassukhākhye vasate pure
The lovely city of the wise Varuna is called Sukha; Varuna, lord of the water-born beings, dwells in that city named Sukha.