Bhagavad Gita 10.22
Of the Vedas, I am the hymns; I am the electric force in the powers of nature; of the senses, I am the mind; and I am the intelligence in all that lives.
वेदानां सामवेदोऽस्मि देवानामस्मि वासवः।
इन्द्रियाणां मनश्चास्मि भूतानामस्मि चेतना॥vedānāṃ sāmavedo'smi devānāmasmi vāsavaḥ|
indriyāṇāṃ manaścāsmi bhūtānāmasmi cetanā||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).