The father of Abu al-Ushara' al-Darimi (may Allah be pleased with him) says: The Messenger of Allah (peace and blessings be upon him) came to us while my father was dying, and he (peace and blessings be upon him) blew over him lightly with a little saliva from his head to his feet. It is as if I can still see the droplets of saliva on his body.
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6693