Hadith 1:43
Narrated Abu Huraira (rad):
Allah’s Messenger (ﷺ) said: “When one of you wakes up from his sleep, he must blow of his nose three times, for the Satan spends the night inside one’s nostrils” [Agreed upon].
وَعَنْ أَبِي هُرَيْرَةَ - رضى الله عنه - قَالَ: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ إِذَا اِسْتَيْقَظَ أَحَدُكُمْ مِنْ مَنَامِهِ فَلْيَسْتَنْثِرْ ثَلَاثًا, فَإِنَّ اَلشَّيْطَانَ يَبِيتُ عَلَى خَيْشُومِهِ } مُتَّفَقٌ عَلَيْه ِ (48)
Original Reference: Bulugh al-Maram 37