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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” .
Source: sunnah.com
Other translations
Arabic
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 ِ 1 .
sunnah.com