Muwatta Malik, Book 50, Hadith 1723 (In-Book) ⓘ

Yahya related to me from Malik from Ibn Shihab from Urwa ibn az- Zubayr from A'isha that the Messenger of Allah, may Allah bless him and grant him peace, when he had a complaint, would recite the last three suras of Qur'an, over himself and blow. She said, "When his pain was great, I would recite it over him and wipe him with his right hand hoping for its blessing."

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ، عَنْ عَائِشَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ إِذَا اشْتَكَى يَقْرَأُ عَلَى نَفْسِهِ بِالْمُعَوِّذَاتِ وَيَنْفِثُ ‏.‏ قَالَتْ فَلَمَّا اشْتَدَّ وَجَعُهُ كُنْتُ أَنَا أَقْرَأُ عَلَيْهِ وَأَمْسَحُ عَلَيْهِ بِيَمِينِهِ رَجَاءَ بَرَكَتِهَا ‏.‏