The Book of the Believer · Hadith 6 (#Ḥadīth #6)
Chapter 1 | The Severity of a Believer’s Afflictions
6 - عن الفضيل بن يسار قال: سمعت أبا عبد الله (ع) يقول إنّ الشياطين أكثرُ على المؤمن من الزّنابير على اللّحم
6. It has been narrated that al-Fuďayl ibn Yasar said: I heard Abu 'Abd Allah (al-Sadiq) saying: “There are more devils on a believer (trying to misguide him) than flies on a piece of meat.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).