Bhagavad Gita · 7.4

भूमिरापोऽनलो वायुः खं मनो बुद्धिरेव च।अहङ्कार इतीयं मे भिन्ना प्रकृतिरष्टधा॥

bhūmir āpo 'nalo vāyuḥ khaṁ mano buddhir eva cha ahaṅkāra itīyaṁ me bhinnā prakṛtir aṣhṭadhā

Earth, water, fire, air, ether, mind, intellect, and ego — these are My eightfold material nature.

— Bhagavad Gita 7.4

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)