Bhagavad Gita 4.13

चातुर्वर्ण्यं मया सृष्टं गुणकर्मविभागशः।तस्य कर्तारमपि मां विद्ध्यकर्तारमव्ययम् ॥४.१३॥

cāturvarṇyaṃ mayā sṛṣṭaṃ guṇakarmavibhāgaśaḥtasya kartāramapi māṃ viddhyakartāramavyayam

The fourfold caste has been created by Me according to the differentiation of Guna and Karma; though I am the author of it, know Me as non-doer and immutable.

गीता