Arthashastra
अष्ट प्रोति संघात्या कृष्णा भिङ्गिसी वर्ष वारणम् अपसारक इति नैपालकम् ॥
That (blanket) which is made up of eight pieces and black in colour is called Bhingisi used as rain-proof ; likewise is Apasáraka; both are the products of Nepal.
english translation
aSTa proti saMghAtyA kRSNA bhiGgisI varSa vAraNam apasAraka iti naipAlakam ॥
hk transliteration by Sanscript