The Matters in Which Allah Has Made a Covenant With Believing People in Exchange for Their Exercising Patience in Their Suffering

4. A number of our people have narrated from Sahl ibn Ziyad from Ahmad ibn Muhammad from ibn abu Nasr from Dawud ibn Sarhan who has said the following: “I heard Abu ‘Abdillah عليه السلام saying, ‘A believer is not without four things or at least one of them at a time: he suffers from the envy of a believer and it is the most difficult one, stalking of a hypocrite, the struggle of an enemy against him or the temptation of Satan.’”