Bhagavad Gita Chapter 18.19
jñānaḿ karma ca kartā ca
tridhaiva guṇa-bhedataḥ
procyate guṇa-sańkhyāne
yathāvac chṛṇu tāny api
Translation
According to the three different modes of material nature, there are three kinds of knowledge, action and performer of action. Now hear of them from Me.