Sahih Ibn Khuzaymah

Hazrat Mus'ab bin Sa'd and Amr bin Maymun Azdi both narrate that Sayyiduna Sa'd (may Allah be pleased with him) used to teach these words of supplication to his children just as a teacher teaches his students. He used to say that the Messenger of Allah (peace and blessings be upon him) used to seek Allah's protection with these words after prayer « اللَّهُمَّ إنِّي أعُوذُ بِكَ مِنَ البُخْلِ، وَأَعوذُ بِكَ مِنَ الجُبْنِ، وَأعُوذُ بِكَ أنْ أُرَدَّ إِلَى أَرْذَلِ العُمُرِ، وَأعُوذُ بِكَ مِنْ فِتْنَةِ الدُّنْيَا، وَأَعُوذُ بِكَ مِنْ عَذَابِ القَبْرِ » "O Allah, I seek refuge in You from miserliness and stinginess, and I seek refuge in You from cowardice, and I seek refuge in You from being returned to a worthless old age, I seek refuge in You from the trials of this world, and I seek refuge in You from the punishment of the grave."

Hazrat Muslim bin Abi Bakrah narrates from his respected father that the Prophet Muhammad (peace be upon him) used to recite this supplication after prayer, « اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنَ الْکُفْرِ وَالْفَقْرِ وَ عَذَابِ الْقَبْرِ » "O Allah, I seek refuge in You from disbelief, poverty and destitution, and the torment of the grave."