Arthashastra
जात कामं वा सिद्ध व्यञ्जनः सांवदनिकीभिर् औषधीभिः संवास्य रसेन अतिसंधाय अपगच्छेत् ॥
A spy, under the garb of an ascetic, may apply to a lover such medical ointments as are declared to be capable of captivating the beloved woman and as are adulterated with poison; and then he may disappear.
english translation
jAta kAmaM vA siddha vyaJjanaH sAMvadanikIbhir auSadhIbhiH saMvAsya rasena atisaMdhAya apagacchet ॥
hk transliteration by Sanscript