This supplication brings about great merit. Rasulullah (Sallallahu alaihi wasallam) recommended this dua to Imam Ali (peace be upon him) and said that Jibreel (as) came to me and said, "Whoever in the holy month of Ramadhan before iftaar recites this dua, Allah answers his prayer, accepts his prayer and fasting, grants his ten requirements, forgives his sins, removes his grief's, makes his heart at ease, grants his wishes, makes his deeds to ascend upward with the deeds of prophets and righteous saints and on the Day of Judgment brings him to His presence with his face illuminated like a bright moon." Sayyid ibn Tawus and al-Kaf`ami have narrated the following supplication:
اللّٰهُمَّ رَبَّ النُّوْرِ الْعَظِيْمِ وَ رَبَّ الْكُرْسِيِّ الرَّفِيْعِ وَ رَبَّ الْبَحْرِ الْمَسْجُوْرِ وَ رَبَّ الشَّفْعِ الْكَبِيْرِ وَ النُّوْرِ الْعَزِيْزِ وَ رَبَّ التَّوْرَاةِ وَ الْإِنْجِيْلِ وَ الزَّبُوْرِ وَالْفُرْقَانِ الْعَظِيْمِ أَنْتَ إِلٰهُ مَنْ فِي السَّمَاوَاتِ وَ إِلٰهُ مَنْ فِي الْأَرْضِ
لا إِلٰهَ فِيْهِمَا غَيْرُكَ وَ أَنْتَ مَلِكُ مَنْ فِي السَّمَاوَاتِ وَ مَلِكُ مَنْ فِي الْأَرْضِ لا مَلِكَفِيْهِمَا غَيْرُك أَسْأَلُكَ بِاسْمِكَ الْكَبِيْرِ وَ نُوْرِ وَجْهِكَ الْمُنِيْرِ وَ بِمُلْكِكَ الْقَدِيم يَا حَيُّ يَا قَيُّوْمُ يَا حَيُّ يَا قَيُّوْمُ يَا حَيُّ يَا قَيُّوْمُ أَسْأَلُكَ بِاسْمِكَ الَّذِيْ أَشْرَقَ بِه كُلُّ شَيْءٍ وَ بِاسْمِكَ الَّذِيْ أَشْرَقَتْ بِهِ السَّمَاوَاتُ وَ الْأَرْضُ وَ بِاسْمِكَ الَّذِيْ صَلَحَ بِهِ الْأَوَّلُوْنَ وَ بِهٖ يَصْلُحُ الْآخِرُوْنَ يَا حَيُّ قَبْلَ كُلِّ حَيٍّ وَ يَا حَيُّ بَعْدَ كُلِّ حَيٍّ وَ يَا حَيُّ لا إِلٰهَ إِلا أَنْتَ صَلِّ عَلٰى مُحَمَّدٍ وَ آلِ مُحَمَّدٍ
وَ اغْفِرْ لِيْ ذُنُوْبِيْ وَ اجْعَلْ لِيْ مِنْ أَمْرِي يُسْرًا وَ فَرَجًا قَرِيْبًا وَ ثَبِّتْنِيْ عَلٰى دِيْنِ مُحَمَّدٍ وَ آلِ مُحَمَّدٍ وَ عَلٰى سُنَّةِ مُحَمَّدٍ وَ آلِ مُحَمَّدٍ عَلَيْهِ وَ عَلَيْهِمُ السَّلامُ
وَ اجْعَلْ عَمَلِيْ فِي الْمَرْفُوْعِ الْمُتَقَبَّلِ وَ هَبْ لِي كَمَا وَهَبْتَ لِأَوْلِيَائِكَ وَ أَهْلِ طَاعَتِكَ فَإِنِّيْ مُؤْمِنٌ بِكَ وَ مُتَوَكِّلٌ عَلَيْكَ مُنِيْبٌ إِلَيْكَ مَعَ مَصِيْرِيْ إِلَيْكَ وَ تَجْمَعُ لِيْ وَ تَجْمَعَ لئِ وَ لِأَهْلِيْ وَ وُلْدِيَ الْخَيْرَ كُلَّه
وَ تَصْرِفُ عَنِّيْ وَ عَنْ وُلْدِيْ وَ أَهْلِيَ الشَّرَّ كُلَّه أَنْتَ الْحَنَّانُ الْمَنَّانُ بَدِيْعُ السَّمَاوَاتِ وَ الْأَرْضِ تُعْطِي الْخَيْرَ مَنْ تَشَاءُ وَ تَصْرِفُه عَمَّنْ تَشَاءُ فَامْنُنْ عَلَيَّ بِرَحْمَتِكَ يَا أَرْحَمَ الرَّاحِمِيْنَ
allahumma rabban nooril ‘azeem wa rabbal kursiyil rafee’ wa rabbal bahril masjoori wa rabbash shafi’l kabeer wan-nooril ‘azeez wa rabbat-tawraati wal injeeli waz-zaboori wal furqaan-il azeem anta ilaaju man fis-samavaati wa ilaaju man fil ardhi la-ilaaha feehima ghayruka wa anta maliku man fis-samavaati wa maliku man fil ardhi la malika feehima ghairuk as-asluka bimikal Kabeer wa noori wajhikal muneer wa bi-mulkikal qadeem ya hayyu ya qayyum ya hayyu ya qayyum ya hayyu ya qayyum as-asluka bismikal-ladhee ashraqa bihi kullu shay-in wa bismikal-ladhee ashraqat bihis-samavaatu wal ardh wa bismikal-ladhee salaha bihil awaaloona wa bihi yaslahul aakhiroon ya hayyu qabla kulli hayyi wa hayyu ba’da kulli hayyi wa ya hayyu la ilaaha illa anta, salli ‘alaa muhammadin wa aali muhammadin waghfir li dhunoobi waj’al li min amri yusran wa farajan qareeban waj’al ‘amali fil marfo’il mutaqabbal wa hab li kama wahabta li awliyaika wa ahli ta-a’tik fa-inni mominun bika wa mutawakkilun ‘alayk muneebun ilayka ma’a maseeri ilayka wa tajma’u li tajma-‘a li wa li ahli wa wuldi-yal khaira kulluh wa tasrif ‘anni wa ‘an wuldi wa ahli-yash-sharra kulluh anta-al ‘hannaul-mannau badi’ us-samavaati wal ardh tu’til khaira man tasha-u was tasrif
O Lord of the magnificent light, Lord of the highest heaven, Lord of the flowing seas, Lord of the great intercessor, Lord of the flowing seas, Lord of the great intercessor and brilliant light, Lord of the Tawrat and Injil, and the grand Furqan (criterion). You are the only God of the heavens and the earth. There is no other god save you. You are powerful over everything in the heavens and earth. There is no power save You. You are the owner of the heavens and earth. There is no owner save you. I beseech you through your great name, your brilliant superior being, your ever-existing kingdom O Ever Living, O Self –Subsisting, O Ever Living, O self Subsisting. I beseech you in thy name that illuminates everything and by thy name that radiates in the heavens and earth, thy name which sets the people of all times on the right path from the foremost to the last. O Ever Living who was there before anything else. O Ever Living who is ever existing when no life shall exist. O Ever Living there is no god save You. Peace be upon Mohammed and his progeny. Forgive me my sins, make my affairs easy, and the reappearance near and keep us firm in the religion of Mohammed and family of Mohammed, on the guidance of Mohammed and family of Mohammed, on the sunnah of Mohammed and his family, peace be upon him and his family. Bestow upon me like you have granted your pious and obedient servants. For surely I am a believer in you, trusting in you, turning repentantly to you, to you is my journey's end. Gather for me and for my family and my parents all good and remove for me, my family and parents all evil. You are the compassionate, the supporter, and the originator of the heavens and the earth. Give me the best that you wish and protect me from Your Grace