Prose
S. B. U. III. 4
In plain words
[This is a page marker, not a verse: a citation abbreviation reading 'Śāṅkara-bhāṣya, Bṛhadāraṇyaka Upaniṣad, chapter 3, section 4.' It is a print artifact, not text to be rendered as commentary.]
Close to the Sanskrit
[This record is not running Sanskrit text. It is a bare bibliographic citation — 'S. B. U. III. 4', i.e. 'Śāṅkara-bhāṣya, Bṛhadāraṇyaka Upaniṣad, III.4' — a page marker/cross-reference artifact from the printed edition, sitting between two records whose sentence it interrupts. It carries no doctrinal content to translate.]