Bhagavad Gita 4.13

चातुर्वर्ण्यं मया सृष्टं गुणकर्मविभागश: |
तस्य कर्तारामपि मां विद्ध्यकर्तारामव्ययम्

Translation

The four categories of occupations were created by Me according to people’s qualities and activities. Although I am the Creator of this system, know Me to be the Non-doer and Eternal.