What ritual did the Prophet Muhammad (peace be upon him) perform whenever he became ill?
 Narrated Aisha:                     Whenever Allah's Apostle became ill, he used to recite the Muawidhatan and blow his breath over himself (after their recitation ) and rubbed his hands over his body. So when he was afflicted with his fatal illness. I started reciting the Muawidhatan and blowing my breath over him as he used to blow and made the hand of the Prophet pass over his body.