Chapter 7 · Knowledge and Realisation · Krishna said
Bhagavad Gita 7.9 — Source of life
पुण्यो गन्धः पृथिव्यां च तेजश्चास्मि विभावसौ। जीवनं सर्वभूतेषु तपश्चास्मि तपस्विषु ॥
puṇyo gandhaḥ pṛthivyāṃ ca tejaścāsmi vibhāvasau | jīvanaṃ sarvabhūteṣu tapaścāsmi tapasviṣu ||
Meaning
I am the pure fragrance of the earth, the brilliance in fire, the life in all beings and the austerity in ascetics.