(11) باب صِفَةِ إِبْلِيسَ وَجُنُودِهِ
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "During your sleep, Satan knots three knots at the back of the head of each of you, and he breathes the following words at each knot, 'The night is, long, so keep on sleeping,' If that person wakes up and celebrates the praises of Allah, then one knot is undone, and when he performs ablution the second knot is undone, and when he prays, all the knots are undone, and he gets up in the morning lively and in good spirits, otherwise he gets up in low spirits and lethargic."
Reference: Sahih al-Bukhari 3269
In-book reference: Book 59, Hadith 79
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 54, Hadith 491