Charak Samhita
पूतिभूतविषद्विष्टा गन्धा ये चाप्यनार्तवाः। तैर्गन्धैर्घ्राणसंयोगो मिथ्यायोगः स उच्यते ॥१२६॥
These are the three types of unwholesome contact of sense with their respective objects which aggravate the doshas.
english translation
pUtibhUtaviSadviSTA gandhA ye cApyanArtavAH। tairgandhairghrANasaMyogo mithyAyogaH sa ucyate ॥126॥
hk transliteration by Sanscript