Hisnul Muslim 58

After the final tashahhud and before salam

اللَّهُمَّ اغْفِرْ لِي مَا قَدَّمْتُ وَمَا أَخَّرْتُ، وَمَا أَسْرَرْتُ، وَمَا أَعْلَنْتُ، وَمَا أَسْرَفْتُ، وَمَا أَنْتَ أَعْلَمُ بِهِ مِنِّي. أَنْتَ الْمُقَدِّمُ، وَأَنْتَ الْمُؤَخِّرُ لَا إِلهَ إِلَاَّ أَنْتَ

Allaahum-maghfir lee maa qaddamtu, wa maa 'akhkhartu, wa maa 'asrartu, wa maa 'a'lantu, wa maa 'asraftu, wa maa 'Anta 'a'lamu bihi minnee. 'Antal-Muqaddimu, wa 'Antal-Mu'akhkhiru laa 'ilaaha 'illaa 'Anta.

O Allah, forgive me what I have sent before me and what I have left behind me, what I have concealed and what I have done openly, what I have done in excess, and what You are better aware of than I. You are the One Who sends forth and You are the One Who delays. There is none worthy of worship but You.