The works of Ādi Śaṅkarācārya

Bṛhadāraṇyakopaniṣadbhāṣyam

Verse 18

अथ श्रोत्रमत्यवहत् ; तद्यदा मृत्युम-त्यमुच्यत ता दिशोऽभवँस्ता इमा दि-शः परेण मृत्युमतिक्रान्ताः ॥ १५ ॥

In plain words

Next, the ear reached beyond. When it was freed from death, it became the quarters of space. These very directions stand having transcended death.

Close to the Sanskrit

Now the ear carried beyond; when that was freed from death, it became the directions; these directions are transcendent of death.