Adhkar after the prayer (1)

أَسْتَغْفِرُ اللَّهَ . (ثَلاثاً) اللَّهُمَّ أَنْتَ السَّلاَمُ، وَمِنْكَ السَّلَامُ، تَبَارَكْتَ يَا ذَا الْجَلَالِ وَالإِكْرَامِ .

Astaghfirul-lah (three times) Allahumma antas-salam waminkas-salam, tabarakta ya thal-jalali wal-ikram.

I ask Allah for forgiveness.(three times) O Allah, You are As-Salam and from You is all peace, blessed are You, O Possessor of majesty and honour.’ AS-Salam: The One Who is free from all defects and deficiencies.

Source: Muslim 1:414