صحیح مسلم · Hadith 1820

Abu Huraira transmitted it from the Messenger of Allah ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ): When any one of you goes to sleep, the devil ties three knots at the back of his neck, sealing every knot with: You have a long night, so sleep. So if one awakes and mentions Allah, a knot will be loosened; if he performs ablution two knots are loosened; and if he prays (all) knots will be loosened, and in the morning he will be active and in good spirits; otherwise we will be in bad spirits and sluggish in the morning.

Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020