Messenger of Allah ﷺ said: "Whoever has a need from Allah, or from one of the sons of Adam, then let him perform Wudu', performing it well, then pray two Rakʿah, then praise Allah and say Salat upon the Prophet ﷺ. Then let him say: (La ilaha illallah Al-Halimul-Karim. Subhan Allah Rabbil-ʿArshil-ʿAzim. Al-Hamdulillahi Rabbil-ʿAlamin. As'aluka mujibati rahmatika wa ʿaza'im maghfiratika, wal-ghanimata min kulli birrin, was-salamata min kulli ithmin, la tadaʿ li dhanban illa ghafartahu, wa la hamman illa farrajtahu, wa la Hajatan hiya laka ridan Illa Qadaitaha, ya arham ar-rahimin) 'None has the right to be worshiped but Allah. Al-Halim (the Forbearing) Al-Karim (the Generous). Glorious is Allah, Lord of the Magnificent Throne. All praise is due to Allah, Lord of the worlds. I ask You for that which warrants Your mercy, and that which will determine Your forgiveness, and the spoils (fruits) of every righteous deed, and safety from every sin; do not leave a sin for me without forgiving it, nor a worry without relieving it. Or a need that pleases you without granting it. O Most-Merciful of those who have mercy.'"  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ كَانَتْ لَهُ إِلَى اللَّهِ حَاجَةٌ أَوْ إِلَى أَحَدٍ مِنْ بَنِي آدَمَ فَلْيَتَوَضَّأْ وَلْيُحْسِنِ الْوُضُوءَ ثُمَّ لْيُصَلِّ رَكْعَتَيْنِ ثُمَّ لْيُثْنِ عَلَى اللَّهِ وَلْيُصَلِّ عَلَى النَّبِيِّ ﷺ ثُمَّ لْيَقُلْ لاَ إِلَهَ إِلاَّ اللَّهُ الْحَلِيمُ الْكَرِيمُ سُبْحَانَ اللَّهِ رَبِّ الْعَرْشِ الْعَظِيمِ الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ أَسْأَلُكَ مُوجِبَاتِ رَحْمَتِكَ وَعَزَائِمَ مَغْفِرَتِكَ وَالْغَنِيمَةَ مِنْ كُلِّ بِرٍّ وَالسَّلاَمَةَ مِنْ كُلِّ إِثْمٍ لاَ تَدَعْ لِي ذَنْبًا إِلاَّ غَفَرْتَهُ وَلاَ هَمًّا إِلاَّ فَرَّجْتَهُ وَلاَ حَاجَةً هِيَ لَكَ رِضًا إِلاَّ قَضَيْتَهَا يَا أَرْحَمَ الرَّاحِمِينَ  

[Machine] The Messenger of Allah ﷺ came out to us one day and sat down. He said, "Whoever has a need to ask Allah for or to ask any human being from the children of Adam, should perform ablution and perfect his ablution, then pray two units of prayer and praise Allah, and send prayers upon the Prophet ﷺ . Then let him say, 'There is no deity except Allah, the Forbearing, the Generous. Glory be to Allah, the Lord of the Great Throne. Praise be to Allah, the Lord of all worlds. I ask You for firm determination in seeking Your forgiveness and protection from every sin and safety from every offense.'" This narration is from Fa'idh bin 'Abdul-Rahman Abu al-Warqa' al-Kufi, who is counted among the followers (tabi'in), and I have seen a group of his contemporaries, and he was upright in narrating hadith, except that the two sheikhs did not narrate from him. I only included this narration as evidence for what was mentioned previously.  

خَرَجَ عَلَيْنَا رَسُولُ اللَّهِ ﷺ يَوْمًا فَقَعَدَ فَقَالَ مَنْ كَانَتْ لَهُ حَاجَةٌ إِلَى اللَّهِ أَوْ إِلَى أَحَدٍ مِنْ بَنِي آدَمَ فَلْيَتَوَضَّأْ وَلْيُحْسِنْ وُضُوءَهُ ثُمَّ لِيُصَلِّ رَكْعَتَيْنِ ثُمَّ يُثْنِي عَلَى اللَّهِ وَيُصَلِّي عَلَى النَّبِيِّ ﷺ وَلْيَقُلْ لَا إِلَهَ إِلَّا اللَّهُ الْحَلِيمُ الْكَرِيمُ سُبْحَانَ اللَّهِ رَبِّ الْعَرْشِ الْعَظِيمِ الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ أَسْأَلُكَ عَزَائِمَ مَغْفِرَتِكَ وَالْعِصْمَةَ مِنْ كُلِّ ذَنْبٍ وَالسَّلَامَةَ مِنْ كُلِّ إِثْمٍ «فَائِدُ بْنُ عَبْدِ الرَّحْمَنِ أَبُو الْوَرْقَاءِ كُوفِيٌّ عِدَادُهُ فِي التَّابِعِينَ وَقَدْ رَأَيْتُ جَمَاعَةً مِنْ أَعْقَابِهِ وَهُوَ مُسْتَقِيمُ الْحَدِيثِ إِلَّا أَنَّ الشَّيْخَيْنِ لَمْ يُخَرِّجَا عَنْهُ وَإِنَّمَا جَعَلْتُ حَدِيثَهُ هَذَا شَاهِدًا لِمَا تَقَدَّمَ»  

"مَنْ كَانَتْ لَهُ حَاجَةٌ إِلَى الله، أَوْ إِلَى أَحَدٍ من بَنى آدَمَ فَلْيَتَوضَّأ فَلْيُحْسِنِ الْوُضُوءَ، ثُمَّ ليصَلِّ رَكْعَتْينِ ثُمَّ ليُثْنِ عَلَى الله، وَلْيُصَلِّ عَلَى النَّبِيِّ ﷺ ثُمَّ ليقُلْ: لا إِلَهَ إِلا الله، الحليمُ الكَرِيمُ، سُبْحَانَ الله ربِّ العرشِ العظيم، الحمدُ لله ربِّ العَالمِينَ، أَسْأَلُكَ مُوجِبَاتِ رَحْمتِكَ وعَزَائمَ مَغْفِرَتِكَ، وَالْغَنِيمَةَ من كُلِّ بِرٍّ، والسَّلَامَةَ مِن كُلِّ إِثْمٍ، لا تَدعَ لَي ذَنْبًا إِلا غَفَرْتَهُ، وَلا هَمًّا إِلا فَرَّجْتَهُ، وَلَا حَاجَةً هي لك رضًا إِلا قَضَيتَهَا يَا أَرحَمَ الراحِمِين".