Bhagavadgita 2.154

Bhagavadgītābhāṣya (Śāṅkarabhāṣya) 2.154

eṣā te 'bhihitā sāṃkhye buddhir yoge tv imāṃ śṛṇu |
buddhyā yukto yayā pārtha karmabandhaṃ prahāsyasi ||