ChU 1.10.10
एवम् एवोद्गातारम् उवाच । उद्गातर् या देवतोद्गीथम् अन्वायत्ता तां चेद् अविद्वान् उद्गास्यसि मूर्धा ते विपतिष्यतीति
evam evodgātāram uvāca | udgātar yā devatodgītham anvāyattā tāṃ ced avidvān udgāsyasi mūrdhā te vipatiṣyatīti
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
In the same manner he addressed the Udgâtri; 'Udgâtri, if you, without knowing the deity which belongs to the udgtîha (the hymns of the Udgâtri), are going to sing it, your head will fall off.'
Translated by F. Max Müller