The Saheeh International Quran Translation
وَيَضِيقُ صَدْرِى وَلَا يَنطَلِقُ لِسَانِى فَأَرْسِلْ إِلَىٰ هَٰرُونَ
تجهيز للطباعة
And that my breast will tighten and my tongue will not be fluent, so send for Aaron.