Surya Siddhanta
त्रिचतुः पादयोः सन्धौ श्रविष्ठा श्रवणस्य तु। स्वभोगतो वियन् नागाः षट्कृतिर् यमलाश्विनः॥
Qravishtha, on the other hand, is at the point of connection of the third and fourth quarters (pada) , of Qravana : then, 1 : ' £W .'t-'v in their own portions, eighty, thirty-six, twenty-two -
english translation
tricatuH pAdayoH sandhau zraviSThA zravaNasya tu। svabhogato viyan nAgAH SaTkRtir yamalAzvinaH॥
hk transliteration by Sanscript