Volume 6, Book 61, Number 535:
Narrated ‘Aisha:
Whenever Allah’s Apostle 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.