Sahih al-Bukhari 3295
Book 59: Beginning of Creation · Narrated by Abu Huraira
Arabic
حَدَّثَنِي إِبْرَاهِيمُ بْنُ حَمْزَةَ، قَالَ حَدَّثَنِي ابْنُ أَبِي حَازِمٍ، عَنْ يَزِيدَ، عَنْ مُحَمَّدِ بْنِ إِبْرَاهِيمَ، عَنْ عِيسَى بْنِ طَلْحَةَ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " إِذَا اسْتَيْقَظَ ـ أُرَاهُ ـ أَحَدُكُمْ مِنْ مَنَامِهِ فَتَوَضَّأَ فَلْيَسْتَنْثِرْ ثَلاَثًا، فَإِنَّ الشَّيْطَانَ يَبِيتُ عَلَى خَيْشُومِهِ ".
English translation
Narrated Abu Huraira:The Prophet (ﷺ) said, "If anyone of you rouses from sleep and performs the ablution, he should wash his nose by putting water in it and then blowing it out thrice, because Satan has stayed in the upper part of his nose all the night
Reference: Sahih al-Bukhari 3295, Book of Beginning of Creation. English translation by Dr. Muhammad Muhsin Khan.