Dua of Musa for ease
رَبِّ اشْرَحْ لِي صَدْرِي وَيَسِّرْ لِي أَمْرِي وَاحْلُلْ عُقْدَةً مِنْ لِسَانِي يَفْقَهُوا قَوْلِي
Transliteration
Rabbish-rah li sadri wa yassir li amri wahlul 'uqdatan min lisani yafqahu qawli
Translation
My Lord, expand for me my chest, ease for me my task, and untie the knot from my tongue so that they may understand my speech.
Quran 20:25-28