Saʿd bin Abi Waqqas used to recommend these five (statements) and say that the Prophet ﷺ said so (and they are): "O Allah! I seek refuge with You from miserliness, and seek refuge with You from cowardice, and seek refuge with You from being brought back to geriatric old age, and seek refuge with You from the afflictions of the world, and seek refuge with You from the punishment of the grave." (Using translation from Bukhārī 6370)
عَنْ رَسُولِ اللهِ ﷺ اللهُمَّ إِنِّي أَعُوذُ بِكَ مِنَ البُخْلِ وَأَعُوذُ بِكَ مِنَ الجُبْنِ وَأَعُوذُ بِكَ أَنْ أُرَدَّ إِلَى أَرْذَلِ الْعُمُرِ وَأَعُوذُ بِكَ مِنْ فِتْنَةِ الدُّنْيَا وَأَعُوذُ بِكَ مِنْ عَذَابِ الْقَبْرِ