How is mash (wiping) performed?

Dear Brother / Sister,

It is fard to wipe one fourth of the head. The Messenger of Allah wiped above the forehead, that is, the front part of the head. Therefore, it is sunnah to wipe the front part of the head. However, any part of the head can be wiped as long as it is not less than one-fourth of the head and the part below the ears is not wiped. For, the place to be wiped on the head is the part of above the two ears. If one-fourth of any side of this part is wiped, the mash is alright.

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