VIRTUES OF QUR'AAN

Narrated 'Aisha (radiyallahu 'anha): Whenever Allah's Apostle (sallallahu 'alayhi wasallam) became sick, he would recite Mu'awwidhat (Surat Al-Falaq and Surat An-Nas) and then blow his breath over his body. When he became seriously ill, I used to recite (these two Suras) and rub his hands over his body hoping for its blessings. Bukhari : Book 6 : Volume 61 : Hadith 535