Sunan an-Nasa'i, Book 50, Hadith 53 (In-Book) ⓘ
It was narrated from 'Umar that: The Prophet [SAW] used to seek refuge with Allah from cowardice, miserliness, reaching the age of second childhood, the trials of the heart and the torment of the grave.
أَخْبَرَنَا أَحْمَدُ بْنُ فَضَالَةَ، عَنْ عُبَيْدِ اللَّهِ، قَالَ أَنْبَأَنَا إِسْرَائِيلُ، عَنْ أَبِي إِسْحَاقَ، عَنْ عَمْرِو بْنِ مَيْمُونٍ، عَنْ عُمَرَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يَتَعَوَّذُ مِنَ الْجُبْنِ وَالْبُخْلِ وَسُوءِ الْعُمُرِ وَفِتْنَةِ الصَّدْرِ وَعَذَابِ الْقَبْرِ .
also referenced under: Hadith 5480 (Reference) & Volume 6, Book 50, Hadith 5482 (DarusSalam)