Wiping one's head, not moistening one's skin

Q: If someone has a thick bushy head of hair that stands about 5cm or more off their head, so when they wipe over their head with water during Wudu' (ablution) the water does not reach their skin, is their Wudu' valid or what should they do?

A: All praise be to Allah Alone, and peace and blessings be upon His Messenger, and his family and Companions. The Wudu’ is valid, even if the water that is wiped does not reach the head skin.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.