Verse 57

एवं स्वरूपं जीवस्य बृहदारण्यकादिषु ।बहुधा बहुषु प्रोक्तं वेदान्तेषु किलानघ

In plain words

Thus, O sinless one, the true nature of the jīva is declared in many ways, in many places, indeed, in the Vedānta texts such as the Bṛhadāraṇyaka.