तं चेद्ब्रूयुरस्मिँश्चेदिदं ब्रह्मपुरे सर्वँसमाहितँ सर्वाणि च भूतानि सर्वे चकामा यदैतज्जरा वाप्नोति प्रध्वँसतेवा किं ततोऽतिशिष्यत इति ॥ ४ ॥
In plain words
If they should ask him: 'Within this city of Brahman everything is contained—all beings and all desires. When this body grows old or utterly perishes, what remains beyond it?'
Close to the Sanskrit
If they should say to him, 'In this city of Brahman all this is established, and all beings and all desires; when this attains old age or utterly perishes, what remains from that?'