اللَّهُمَّ إنِّي أسْألُكَ يَا اللَّهُ  بِأنَّكَ الْوَاحِدُّ الأحَدُ الصَّمَدُ الَّذِي لَم ْيَلِدْ وَ لَمْ يُولَدْ وَلَمْ  يَكُنْ لَهُ كُفُواً أحَدٌ، أنْ تَغْفِرَ لِي ذُنُوبِي إنَّكَ أنْتَ الْغَفُورُ  الَّرحِيمُ

Allahumma inni asaluka ya Allahu bi annakal  Wahidul Ahadus-Samadul ladhi, lam ya-lid wa lam youlad, wa lam  yakullahu kufuwan Ahad, an taghfirali dhunoobi innaka Antal Ghafūūrur  Raheem

O Allah!  I ask You, O Allah, You  are the One, the Only, Self Sufficient Master, who was not begotten and begets  not and non is equal to Him.  Forgive me my sins, surely you are Forgiving,  Merciful.
[Abu Dawud, an Nasa’i, ibn Majah, at Tirmidhi]