Book 26, Number 5425:

Abu Sa'id reported that Gabriel came to AJlah's Messenger (may peace be upon him) and said: Muhammad, have you fallen ill? Thereupon he said: Yes. He (Gabriel) said:" In the name of Allah I exercise you from everything and safeguard you from every evil that may harm you and from the eye of a jealous one. Allah would cure you and I invoke the name of Allah for you."