KAṬHA UPANISHAD · 2.2.5

न प्राणेन नापानेन मर्त्यो जीवति कश्चन ।
इतरेण तु जीवन्ति यस्मिन्नेतावुपाश्रितौ ॥ ५॥

na prāṇena nāpānena martyo jīvati kaścana ।
itareṇa tu jīvanti yasminnetāvupāśritau ॥ 5॥

Man that is mortal liveth not by the breath, no, nor by the lower breath; but by something else we live in which both these have their being.