When someone complained of an ailment

Explanation

When someone was sick ,or suffering from a wound or a sore, the Prophet (may Allah's peace and blessings be upon him) would moisten (the tip of) his index finger with his saliva then touch the ground with it, so some dust would stick to it. He would then wipe it over the wound or ailing part of the body, saying: “In the name of Allah, the dust of our earth along with the saliva of some of us will cure our ailing people, with the permission of our Lord."