Ash-Shu'ara 26:13

وَيَضِيقُ صَدْرِى وَلَا يَنطَلِقُ لِسَانِى فَأَرْسِلْ إِلَىٰ هَـٰرُونَ

Wayaḍīqu ṣadrī walā yanṭaliqu lisānī fa-arsil ilā hārūna

And that my breast will tighten and my tongue will not be fluent, so send for Aaron.