(3) باب الاِسْتِعَاذَةِ مِنْ فِتْنَةِ الصَّدْرِ
It was narrated from 'Umar that:
The Prophet [SAW] used to seek refuge with Allah from cowardice, miserliness, the tribulation of the heart and the torment of the grave.
Reference: Sunan an-Nasa'i 5443
In-book reference: Book 50, Hadith 16
English translation: Vol. 6, Book 50, Hadith 5445