Bhagavad Gita 18.29

बुद्धेर्भेदं धृतेश्चैव गुणतस्त्रिविधं श्रृणु।प्रोच्यमानमशेषेण पृथक्त्वेन धनञ्जय ॥१८.२९॥

buddherbhedaṃ dhṛteścaiva guṇatastrividhaṃ śrṛṇuprocyamānamaśeṣeṇa pṛthaktvena dhanañjaya

Hear thou the threefold division of intellect and firmness, according to the Gunas, as I declare them fully and distinctly, O Arjuna.

गीता