اللَّهُمَّ أَعِنِّي عَلَى ذِكْرِكَ وَشُكْرِكَ وَحُسْنِ عِبَادَتِكَ
Allahumma a'inni 'ala dhikrika wa shukrika wa husni 'ibadatik
O Allah, help me to remember You, to thank You, and to worship You in the best manner.
The Prophet ﷺ took Mu'adh ibn Jabal (RA) by the hand and said: "O Mu'adh, by Allah I love you." Then he said: "I advise you, O Mu'adh: never leave saying this after every prayer." This shows how important this du'a is — the Prophet ﷺ personally advised one of his most beloved Companions with it.
Related Du'as
اللَّهُمَّ اجْعَلْنِي مِنَ التَّوَّابِينَ وَاجْعَلْنِي مِنَ الْمُتَطَهِّرِينَ
O Allah, make me among those who repent and make me among those who purify themselves.
Sahihاللَّهُمَّ لَا مَانِعَ لِمَا أَعْطَيْتَ وَلَا مُعْطِيَ لِمَا مَنَعْتَ وَلَا يَنْفَعُ ذَا الْجَدِّ مِنْكَ الْجَدُّ
O Allah, none can withhold what You give, and none can give what You withhold, and no wealth or might can benefit anyone against Your will.
Sahihاللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنَ الْجُبْنِ وَأَعُوذُ بِكَ مِنَ الْبُخْلِ وَأَعُوذُ بِكَ مِنْ أَنْ أُرَدَّ إِلَى أَرْذَلِ الْعُمُرِ وَأَعُوذُ بِكَ مِنْ فِتْنَةِ الدُّنْيَا وَعَذَابِ الْقَبْرِ
O Allah, I seek refuge in You from cowardice, from miserliness, from being returned to the most decrepit old age, and I seek refuge in You from the trials of this world and the punishment of the grave.
Sahihأَسْتَغْفِرُ اللَّهَ أَسْتَغْفِرُ اللَّهَ أَسْتَغْفِرُ اللَّهَ
I seek Allah's forgiveness (three times).
Sahih