Mukhtasar Bukhari

Narrated from Ummul Momineen Aisha Siddiqa (may Allah be pleased with her) that when the Prophet Muhammad (peace and blessings be upon him) would fall ill, he would recite the Mu'awwidhat (Surah Al-Ikhlas, Al-Falaq, and An-Naas) and blow over himself and pass his hand over his body. But when he (peace and blessings be upon him) was afflicted with the illness of death, I would recite these Surahs, blow on his hands, and then pass them over the blessed body of the Prophet Muhammad (peace and blessings be upon him).