Kamasutra 7.1.30

7.1.30

etair eva cūrṇitair vānarapurīṣamiśritair yāṃ kanyām avakiret sānyasmai na dīyate/

(e) If a man cuts into small pieces the sprouts of the vajnasunhi plant, and dips them into a mixture of red arsenic and sulphur, and then dries them seven times, and applies this powder mixed with honey to his lingam, he can subjugate a woman to his will directly that he has had sexual union with her, or, if, by burning these very sprouts at night and looking at the smoke, he sees a golden moon behind, he will then be successful with any woman; or if he throws some of the powder of these same sprouts mixed with the excrement of a monkey upon a maiden, she will not be given in marriage to any body else.