A Dua After completing Quran

Amir al-Muminin (A.S) always read this at the time of completing the reading of the Qur’an: 

اللَّهُمَّ اشْرَحْ بِالْقُرْآنِ صَدْرِي وَ اسْتَعْمِلْ بِالْقُرْآنِ بَدَنِي وَ نَوِّرْ بِالْقُرْآنِ بَصَرِي، وَ أَطْلِقْ بِالْقُرْآنِ لِسَانِي وَ أَعِنِّي عَلَيْهِ مَا أَبْقَيْتَنِي فَإِنَّهُ لاَ حَوْلَ وَ لاَ قُوَّةَ إِلّاَ بِكَ.

O’ Lord! Open my breast with the Qur’an, put my body to use with the Qur’an and enlighten my vision with the Qur’an, make my tongue fluent with the Qur’an, and help me with it as long as I am alive; as for sure, there is neither might nor strength but in You.

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