رَبِّ اشْرَحْ لِي صَدْرِي وَيَسِّرْ لِي أَمْرِي وَاحْلُلْ عُقْدَةً مِنْ لِسَانِي يَفْقَهُوا قَوْلِي
Transliteration
Rabbishrah li sadri wa yassir li amri wahlul 'uqdatan min lisani yafqahu qawli
English meaning
My Lord, expand for me my breast, ease my affair, and untie the knot from my tongue that they may understand my speech.
In the Quran this is the dua of the Prophet Musa (Moses) when he was given his mission (Ta-Ha 20:25-28): he asks for an open heart, an easy task and words that people understand. It is recited by those who ask for ease before an exam or a speech.
When is it recited?
Before exams, speeches, or difficult decisions.
Source
Ta-Ha 20/25-28 — Moses' supplication
