رَبَّنَا ظَلَمْنَا أَنفُسَنَا وَإِن لَّمْ تَغْفِرْ لَنَا وَتَرْحَمْنَا لَنَكُونَنَّ مِنَ الْخَاسِرِينَ
Rabbana zalamna anfusina wa il lam taghfir lana wa tarhamna lana kunan minal-khasireen
Our Lord! We have wronged our own souls: If thou forgive us not and bestow not upon us Thy Mercy, we shall certainly be lost. - 7:23
This ayah proved that if a person’s minor sins are not forgiven, he will be punished for it as well.
رَبَّنَا لاَ تَجْعَلْنَا مَعَ الْقَوْمِ الظَّالِمِينَ
Rabbana la taj'alna ma'al qawwmi-dhalimeen
Our Lord! Send us not to the company of the wrong-doers - 7:47
This dua will be made by the people of “the heights” (between Jannah and Jahannum) when their faces will be turned towards the fire of Jahannum. The meaning of the dua is that “O Allah do not include us among the dwellers of Jahannum who are all oppressors.”
رَبَّنَا افْتَحْ بَيْنَنَا وَبَيْنَ قَوْمِنَا بِالْحَقِّ وَأَنتَ خَيْرُ الْفَاتِحِينَ
Rabbanaf-tah baynana wa bayna qawmina bil haqqi wa anta Khayrul Fatiheen
Our Lord! Decide Thou between us and our people in truth, for Thou art the best to decide. - 7:89
This dua was made by Shuaib (A) when his nation refused to accept the truth. Shuaib (A) turned to Allah I making dua.
In reality Shuaib (A) made dua for the destruction of the rejectors from amongst his nation. Allah I accepted this dua and destroyed the nation by a great tremor.
رَبَّنَا أَفْرِغْ عَلَيْنَا صَبْرًا وَتَوَفَّنَا مُسْلِمِينَ
Rabbana afrigh 'alayna sabraw wa tawaffana Muslimeen
Our Lord! Pour out on us patience and constancy, and take our souls unto thee as Muslims (who bow to thy will)! - 7:126
In this dua, there is an indication to the fact that if Allah I does not wish and will, then man’s courage and hope will be of no use. Therefore dua is being made for firmness and steadfastness. Because it’s only steadfastness, patience and firmness which can make a person victorious over one’s opponents.
رَبِّ اغْفِرْ لِي وَلِأَخِي وَأَدْخِلْنَا فِي رَحْمَتِكَ ۖ وَأَنتَ أَرْحَمُ الرَّاحِمِينَ
rabbi ighfir lee waliakhee waadkhilna fee rahmatika waanta arhamu alrrahimeen
My Lord! forgive me and my brother and cause us to enter into Thy mercy, and Thou art the most Merciful of the merciful ones.
Surah Al-A raaf ,verse 151