Sa'd bin Abi Waqqas (RA):
Allah's Messenger (ﷺ) used to seek Allah's protection by invoking this supplication (Du'a) at the end of every Salat (prayer): "O Allah, I seek refuge in You from stinginess, I seek refuge in You from cowardice, I seek refuge in You from old age (and senility), I seek refuge in You from the temptation of the world and I seek refuge in You from the punishment in the grave."
[Reported by al-Bukhari].