ChU 2.9.5
अथ यत् संप्रति मध्यंदिने स उद्गीथः । तद् अस्य देवा अन्वायत्ताः । तस्मात् ते सत्तमाः प्राजापत्यानाम् । उद्गीथभाजिनो ह्य् एतस्य साम्नः
atha yat saṃprati madhyaṃdine sa udgīthaḥ | tad asya devā anvāyattāḥ | tasmāt te sattamāḥ prājāpatyānām | udgīthabhājino hy etasya sāmnaḥ
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
What he is just at noon, that is the udgîtha. On it the Devas are dependent (because they are brilliant). Therefore they are the best of all the descendants of Pragâpati, for they share the udgîtha of that Sâman.
Translated by F. Max Müller