प्रस्तोतर् या देवता प्रस्तावम् अन्वायत्ता तां चेद् अविद्वान् प्रस्तोष्यसि मूर्धा ते विपतिष्यतीति
prastotar yā devatā prastāvam anvāyattā tāṃ ced avidvān prastoṣyasi mūrdhā te vipatiṣyatīti
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
'Prastotri, if you, without knowing the deity which belongs to the prastâva (the hymns &c. of the Prastotri), are going to sing it, your head will fall off.'
Translated by F. Max Müller