God mention in The Quran:
And when My servants ask thee concerning Me, I am indeed close (to them): I respond to the dua (prayer) of every suppliant when they calleth on Me. [ Quran 2:186 ]
These are examples of these prayers:
Our Lord! Grant us good in this world and good in the life to come and keep us safe from the torment of the Fire (2:201)
Our Lord! Bestow on us endurance and make our foothold sure and give us help against those who reject faith. (2:250)
2:286 ----"Our Lord! Condemn us not if we forget or fall into error; our Lord! Lay not on us a burden Like that which Thou didst lay on those before us; Our Lord! Lay not on us a burden greater than we have strength to bear. Blot out our sins, and grant us forgiveness. Have mercy on us. Thou art our Protector; Help us against those who stand against faith." (2:286)لاَ يُكَلِّفُ اللّهُ نَفْسًا إِلاَّ وُسْعَهَا لَهَا مَا كَسَبَتْ وَعَلَيْهَا مَا اكْتَسَبَتْ رَبَّنَا لاَ تُؤَاخِذْنَا إِن نَّسِينَا أَوْ أَخْطَأْنَا رَبَّنَا وَلاَ تَحْمِلْ عَلَيْنَا إِصْرًا كَمَا حَمَلْتَهُ عَلَى الَّذِينَ مِن قَبْلِنَا رَبَّنَا وَلاَ تُحَمِّلْنَا مَا لاَ طَاقَةَ لَنَا بِهِ وَاعْفُ عَنَّا وَاغْفِرْ لَنَا وَارْحَمْنَآ أَنتَ مَوْلاَنَا فَانصُرْنَا عَلَى الْقَوْمِ الْكَافِرِينَ
Our Lord! Let not our hearts deviate from the truth after selves, and unless You grant us forgiveness and bestow Your mercy upon us, we shall most certainly be lost! (7:23)
Our Lord! Place us not among the people who have been guilty of evildoing. (7:47)
Our Lord! Lay open the truth between us and our people, for You are the best of all to lay open the truth. (7:89)
Our Lord! Pour out on us patience and constancy, and make us die as those who have surrendered themselves unto You. (7:126)
Our Lord! Make us not a trial for the evildoing folk, and save as by Your mercy from people who deny the truth (10:85-86)
Our Lord! You truly know all that we may hide [in our hearts] as well as all that we bring into the open, for nothing whatever, be it on earth or in heaven, remains hidden
Our Lord! Bestow on us mercy from Your presence and dispose of our affairs for us in the right way. (18:10) & (59:10)
Our Lord! In You we have placed our trust, and to You do we turn in repentance, for unto You is the end of all journeys. (60:4)
Our Lord! Perfect our light for us and forgive us our sins, for verily You have power over all things. (66:8)