It was narrated that ‘Amr bin Maimun Al-Awdi said: “Saad used to teach his children these words as a teacher teaches his students, and he said that the Messenger of Allah صلی اللہ علیہ وآلہ وسلم used to seek refuge by means of them at the end of every prayer:(Allah, I seek refuge with You from miserliness, and I seek refuge in You from cowardice, and I seek refuge in You from reaching the age of senility, and I seek refuge in You from the trials of this world, and I seek refuge in You from the torment of the grave.’ So I narrated that to Mus’ab and he said that he told the truth.” (Sahih)