اللَّهُمَّ إِنِّي أَسْأَلُكَ يَا أَللَّهُ بِأَنَّكَ الْوَاحِدُ الْأَحَدُ الصَّمَدُ الَّذِي لَمْ يَلِدْ وَلَمْ يُولَدْ، وَلَمْ يَكنْ لَهُ كُفُواً أَحَدٌ، أَنْ تَغْفِرَ لِي ذُنُوبِي إِنَّكَ أَنْتَ الْغَفُورُ الرَّحِّيمُ

O Allah, I ask You. O Allah, You are the One, the Only, Self-Sufficient Master, Who was not begotten and begets not and none is equal to Him. Forgive me my sins, surely you are Forgiving, Merciful.

Allaahumma 'innee 'as'aluka yaaAllaahu bi'annakal-Waahidul-'Ahadus-Samadul-lathee, lam yalid wa lam yoolad, wa lam yakun lahu kufuwan 'Ahad, 'an taghfira lee thunoobee 'innaka 'Antal-Ghafoorur-Raheem..

An-Nasa'i 3/52, Ahmad 4/338. See also Al-Albani, Sahih An-Nasa'i 1/280 and Sifat Salatun-Nabi, pg. 204