TgJ Is35:5 :וְאֻדנְהוֹן דִכחַרשִין לְקַבָלָא לְמִלֵי נְבִיַיָא יַצִיתָן‏ : the ears which are deaf to accept the prophets' words shall listen
See the entire entry for ḥreš, ḥaršā adj. deaf; mute