Charak Samhita
रसवीर्यविपाकानां सामान्यं यत्र लक्ष्यते। विशेषः कर्मणां चैव प्रभावस्तस्य स स्मृतः ॥६७॥
॥ Prabhava (specific influential effect)॥ In cases, where, inspite of similarity in rasa, veerya and vipaka, there is difference in action, this (difference) is said to be due to prabhava (specific potency).
english translation
rasavIryavipAkAnAM sAmAnyaM yatra lakSyate। vizeSaH karmaNAM caiva prabhAvastasya sa smRtaH ॥67॥
hk transliteration by Sanscript