The works of Ādi Śaṅkarācārya

Chāndogyopaniṣadbhāṣyam

Verse 144

न ह वा अस्मा उदेति न निम्लोचति सकृद्दिवा हैवास्मै भवति य एतामेव ब्रह्मौपनिषद वेद ॥ ३ ॥

In plain words

For him the sun neither rises nor sets; for one who thus knows this Upanishadic truth of Brahman, it is perpetual day.

Close to the Sanskrit

Not indeed for him does it rise, nor does it set; continuously daytime indeed it is for him, who thus knows this Brahman taught in the Upanishads.