The works of Ādi Śaṅkarācārya

Chāndogyopaniṣadbhāṣyam

Verse 247

तस्मिन्नेतस्मिन्नग्नौ देवा वर्षं जुह्वतितस्या आहुतेरन्नँ संभवति ॥ २ ॥

In plain words

In this very fire the gods offer rain as an oblation, and from that offering food comes forth.

Close to the Sanskrit

In that very fire the gods offer rain; from that offering food is produced.