Mercy And Forgiveness For Deadly Sins

O, Muhammad! Whosoever, from among Your Ummah [i.e. Islamic Community] commits a Deadly Sin, and who wishes to erase it, and purify himself from it, and who intends to get close to Me should perform a Ritual Ablution of all his body and put on a clean garment. He should then go to a plain [desert-meadow] and turn towards the “Qiblah”, and in a place where no one can see him, raise his hands in the air, so that there may not be any obstacles anymore between My slave [servant] and I. He should then say humbly: 

يَا وَاسِعاً بِحُسْنِ عَائِدَتِهِ وَ يَا مُلَبِّسَنَا فَضْلَ رَحْمَتِهِ وَ يَا مَهِيباً لِشِدَّةِ سُلْطَانِهِ وَ يَا رَاحِماً بِكُلِّ مَكَان ضَرِيراً أَصَابَهُ الضُّرُّ فَخَرَجَ إِلَيْكَ مُسْتَغِيثاً بِكَ آئِباً إِلَيْكَ هَائِباً لَكَ يَقُولُ عَمِلْتُ سُوءاً وَ ظَلَمْتُ نَفْسِي وَ لِمَغْفِرَتِكَ خَرَجْتُ إِلَيْكَ أَسْتَجِيرُ بِكَ فِي خُرُوجِي مِنَ النَّارِ وَ بِعِزِّ جَلاَلِكَ تَجَاوَزْتُ، تَجَاوَزْ يَا كَرِيمُ وَ بِاسْمِكَ الَّذِي تَسَمَّيْتَ بِهِ وَ جَعَلْتَهُ فِي كُلِّ عَظَمَتِكَ وَ مَعَ كُلِّ قُدْرَتِكَ وَ فِي كُلِّ سُلْطَانِكَ وَ صَيَّرْتَهُ فِي قَبْضَتِكَ وَ نَوَّرْتَهُ بِكِتَابِكَ وَ أَلْبَسْتَهُ وَقَاراً مِنْكَ، يَا اللهُ يَا اللهُ أَطْلُبُ إِلَيْكَ أَنْ تُصَلِّيَ عَلَى مُحَمَّد وَ آلِ مُحَمَّد وَ أَنْ تَمْحُوَ عَنِّي مَا أَتَيْتُكَ بِهِ وَانْزِعْ بَدَنِي عَنْ مِثْلِهِ، فَإِنِّي بِكَ لاَ إِلَهَ إِلاَّ أَنْتَ أَعْتَصِمُ وَ بِاسْمِكَ الَّذِي فِيهِ تَفْصِيلُ الْاُمُورِ كُلِّهَا مُؤْمِنٌ هَذَا اعْتِرَافِي لَكَ، فَلاَ تَخْذُلْنِي وَهَبْ لِي عَافِيَةً وَ أَنْجِنِي مِنَ الذَّنْبِ الْعَظِيمِ، هَلَكْتُ فَتَلاَفَنِي بِحَقِّ حُقُوقِكَ كُلِّهَا يَا كَرِيمُ. 

O, Merciful God! O You, Who extend Blessings and the Benefits of Goodness! O You, Who bestow your vast Grace! O You, Whose Dominion and Power are extended! O You, Who have Mercy and Pity towards Your slaves [servants] anywhere and everywhere!
Now, one of Your slaves [servants] is coming to You, seeking your Mercy and Compassion, and asking Your Assistance, and presenting himself before Your Threshold, and declaring, confessing, acknowledging, admitting that: I did wrong, I was unjust against myself, and now I have come to You, hoping to receive Your Absolution and Forgiveness! I supplicate You to save me from Hell Fire and Grant me shelter! Although, I have truly trespassed and misbehaved, [O, God] by Your Power and Majesty, please Do forgive my crime…!
By the Power of the Name, with which You have called Yourself, and placed it as a Badge and a Sign for all Your Power and Majesty in all Your Rule and Dominion. You have taken possession of Your Name, and illuminated it with Your Book [the Holy Quran], and put on it the robe of Dignity.
O, Allah…! O, Allah…! I supplicate You to send your Blessings and Peace to Muhammad and the holy Family of Muhammad, and to forgive and erase all the Sins that I have committed, and because of which, I have come to Your Threshold! [O, God] Erase my body from all those past sins, for I grip your Rope of Mercy and Grace, [for there is no god except You]! I believe and have faith in [the Name], which is the solution for all the matters [in the world]! This is my confession and admission!
Do not degrade and debase me. Bestow on me well-being [good health] and Salvation. Save me from the Major Sins, for I am devastated and destroyed…!
Therefore, by the power of all the rights that you have over us, please Atone and Compensate everything for the better for me, O, You the Generous. 

[O, Muhammad!] Indeed, if a slave [servant] makes this Prayer, which I have taught you, with sincerity and devotion, I will redeem and liberate him from his deadly sin! I shall forgive him and purify him forever, for [in this Prayer,] I have taught you some of My Names that will make Me fulfill the Prayer of whosoever recites it.