Sahih al-Bukhari 5735
Narrated `Aisha:
During the Prophet's fatal illness, he used to recite the Mu'auwidhat (Surat An-Nas and Surat Al- 
Falaq) and then blow his breath over his body. When his illness was aggravated, I used to recite those 
two Suras and blow my breath over him and make him rub his body with his own hand for its 
blessings." (Ma`mar asked Az-Zuhri: How did the Prophet (ﷺ) use to blow? Az-Zuhri said: He used to 
blow on his hands and then passed them over his face.)
حَدَّثَنِي إِبْرَاهِيمُ بْنُ مُوسَى، أَخْبَرَنَا هِشَامٌ، عَنْ مَعْمَرٍ، عَنِ الزُّهْرِيِّ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يَنْفُثُ عَلَى نَفْسِهِ فِي الْمَرَضِ الَّذِي مَاتَ فِيهِ بِالْمُعَوِّذَاتِ، فَلَمَّا ثَقُلَ كُنْتُ أَنْفِثُ عَلَيْهِ بِهِنَّ، وَأَمْسَحُ بِيَدِ نَفْسِهِ لِبَرَكَتِهَا‏.‏ فَسَأَلْتُ الزُّهْرِيَّ كَيْفَ يَنْفِثُ قَالَ كَانَ يَنْفِثُ عَلَى يَدَيْهِ، ثُمَّ يَمْسَحُ بِهِمَا وَجْهَهُ‏.‏