Arthashastra
उप उदका प्रतिबला वञ्जुलः पारिभद्रकः । एतेषां मूल कल्केन मण्डूक वसया सह ॥
Oil should be extracted from the paste prepared from the roots of pratibala, vanjula and páribhadraka, all growing near water, the paste being mixed with the serum of the flesh of a frog.
english translation
upa udakA pratibalA vaJjulaH pAribhadrakaH । eteSAM mUla kalkena maNDUka vasayA saha ॥
hk transliteration by Sanscript