ChU 3.18.6
श्रोत्रम् एव ब्रह्मणश् चतुर्थः पादः । स दिग्भिर् ज्योतिषा भाति च तपति च । भाति च तपति च कीर्त्या यशसा ब्रह्मवर्चसेन य एवं वेद य एवं वेद
śrotram eva brahmaṇaś caturthaḥ pādaḥ | sa digbhir jyotiṣā bhāti ca tapati ca | bhāti ca tapati ca kīrtyā yaśasā brahmavarcasena ya evaṃ veda ya evaṃ veda
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
The ear is indeed the fourth foot of Brahman. That foot shines with the quarters as its light, and warms. He who knows this, shines and warms through his celebrity, fame, and glory of countenance.
Translated by F. Max Müller