ChU 8.1.4
तं चेद् ब्रूयुर् अस्मिंश् चेदं ब्रह्मपुरे सर्वं समाहितं सर्वाणि च भूतानि सर्वे च कामा यद् एनज् जरा वाप्नोति प्रध्वंसते वा किं ततो ऽतिशिष्यत इति
taṃ ced brūyur asmiṃś cedaṃ brahmapure sarvaṃ samāhitaṃ sarvāṇi ca bhūtāni sarve ca kāmā yad enaj jarā vāpnoti pradhvaṃsate vā kiṃ tato 'tiśiṣyata iti
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
And if they should say to him: 'If everything that exists is contained in that city of Brahman, all beings and all desires (whatever can be imagined or desired), then what is left of it, when old age reaches it and scatters it, or when it falls to pieces?'
Translated by F. Max Müller