Shuddhiddipika 1.37

Śuddhiddīpikā 1.37

ṣaḍvargavivekaḥ
kṣetraṃ horātha dveṣkāṇo navāṃśo dvādaśāṃśakaḥ | triṃśāṃśakaśca vargo'yaṃ tryādyairyo yasya tasya saḥ