Allah’s Messenger ﷺ ordered me to guard the Zakat revenue of Ramaḍān. Then somebody came to me and started stealing from the provisions. I caught him and said, "I will take you to Allah’s Messenger!" Then Abu Hurayrah described the whole incident and said: That person said (to me), "Please don’t take me to Allah’s Messenger and I will tell you a few words by which Allah will benefit you. When you go to your bed, recite Āyat al-Kursī, for then there will be (with you) a guardian from Allah who will protect you all night long, and Satan will not be able to come near you till dawn." When the Prophet ﷺ heard about the incident he said (to me), "He (who came to you at night) told you the truth although he is a liar; it was a devil." Reference: Sahih al-Bukhari 5010