AVŚ 9.10.18
ऋचो अक्षरे परमे व्योमन् यस्मिन् देवा अधि विश्वे निषेदुः । यस् तन् न वेद किम् ऋचा करिष्यति य इत् तद् विदुस् ते अमी सम् आसते ॥१८॥
ṛco akṣare parame vyoman yasmin devā adhi viśve niṣeduḥ | yas tan na veda kim ṛcā kariṣyati ya it tad vidus te amī sam āsate ||18||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
In the syllable of the verse (ṛ́c) in the highest firmament, on which all the gods sat down: he who knoweth not that, what will he do with the verse? they who know that sit together yonder.
Translated by William Dwight Whitney (1905)