Chandogya Upanishad 6.11.2

6.11.2

asya yad ekāṃ śākhāṃ jīvo jahāty atha sā śuṣyati \
dvitīyāṃ jahāty atha sā śuṣyati \
tṛtīyāṃ jahāty atha sā śuṣyati \
sarvaṃ jahāti sarvaḥ śuṣyati \\611.2\

2. If the life leaves one branch of it, then it dries up. It leaves a second; then that dries up. It leaves a third; then that dries up. It leaves the whole; the whole dries up. Even so, indeed, my dear, understand,’ said he.