CC Madhya 19.141
- śatadhā kalpitasya ca
- bhāgo jīvaḥ sa vijñeya
- iti cāha parā śrutiḥ
bāla-agra—the tip of a hair; śata-bhāgasya—of one hundredth; śatadhā—into one hundred parts; kalpitasya—divided; ca—and; bhāgaḥ—minute portion; jīvaḥ—the living entity; saḥ—that; vijñeyaḥ—to be understood; iti—thus; ca—and; āha—have said; parā—chief; śrutiḥ—Vedic mantras.
“‘If we divide the tip of a hair into one hundred parts and then take one part and divide this into another one hundred parts, that ten-thousandth part is the dimension of the living entity. This is the verdict of the chief Vedic mantras.’
The first three padas of this verse from the Pañcadaśī-citra-dīpa (81) are taken from the Śvetāśvatara Upaniṣad (5.9).