Lessons from Imam Ghazali's Ihya; Intentions, Sincerely and Verbal Habits by Sh Riyad Nadwi delivered to the Oxford University Islamic Society.

Dua mentioned:
حَدَّثَنَا أَبُو مَعْمَرٍ، حَدَّثَنَا عَبْدُ الْوَارِثِ، حَدَّثَنَا الْحُسَيْنُ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ بُرَيْدَةَ، عَنْ بُشَيْرِ بْنِ كَعْبٍ الْعَدَوِيِّ، قَالَ حَدَّثَنِي شَدَّادُ بْنُ أَوْسٍ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم ‏"‏ سَيِّدُ الاِسْتِغْفَارِ أَنْ تَقُولَ اللَّهُمَّ أَنْتَ رَبِّي، لاَ إِلَهَ إِلاَّ أَنْتَ، خَلَقْتَنِي وَأَنَا عَبْدُكَ، وَأَنَا عَلَى عَهْدِكَ وَوَعْدِكَ مَا اسْتَطَعْتُ، أَعُوذُ بِكَ مِنْ شَرِّ مَا صَنَعْتُ، أَبُوءُ لَكَ بِنِعْمَتِكَ عَلَىَّ وَأَبُوءُ لَكَ بِذَنْبِي، فَاغْفِرْ لِي، فَإِنَّهُ لاَ يَغْفِرُ الذُّنُوبَ إِلاَّ أَنْتَ ‏"‏‏.‏ قَالَ ‏"‏ وَمَنْ قَالَهَا مِنَ النَّهَارِ مُوقِنًا بِهَا، فَمَاتَ مِنْ يَوْمِهِ قَبْلَ أَنْ يُمْسِيَ، فَهُوَ مِنْ أَهْلِ الْجَنَّةِ، وَمَنْ قَالَهَا مِنَ اللَّيْلِ وَهْوَ مُوقِنٌ بِهَا، فَمَاتَ قَبْلَ أَنْ يُصْبِحَ، فَهْوَ مِنْ أَهْلِ الْجَنَّةِ ‏"‏‏.‏(رواه البخاري)
Narrated Shaddad bin Aus:
The Prophet (ﷺ) said "The most superior way of asking for forgiveness from Allah is: 'O Allah! You are my Rubb. There is no true god except You. You have created me, and I am Your slave, and I hold to Your Covenant as far as I can. I seek refuge in You from the evil of what I have done. I acknowledge the favours that You have bestowed upon me, and I confess my sins. Pardon me, for none but You has the power to pardon. The Prophet (ﷺ) added. "If somebody recites it during the day with firm faith in it, and dies on the same day before the evening, he will be from the people of Paradise; and if somebody recites it at night with firm faith in it, and dies before the morning, he will be from the people of Paradise." (Bukhari).