Sayyida A’isha (Allah be pleased with her) narrates that an Ansari girl was married and became sick hence all her hair fell out. They (her family and friends) intended to join her hair with false hair, so they asked the Messenger of Allah (Allah bless him & give him peace) who said: “Allah has cursed the woman who joins her or someone else’s hair (with the hair of another man or woman) and the woman who asks for her hair to be joined with the hair of another.” (Sahih al-Bukhari, no 5590)
Sayyida A’isha (Allah be pleased with her) narrates that an Ansari girl was married and became sick hence all her hair fell out. They (her family and friends) intended to join her hair with false hair, so they asked the Messenger of Allah (Allah bless him & give him peace) who said: “Allah has cursed the woman who joins her or someone else’s hair (with the hair of another man or woman) and the woman who asks for her hair to be joined with the hair of another.” (Sahih al-Bukhari, no 5590)
taken from
http://www.shariahprogram.ca/islam-qa-women/wigs-false-hair.shtml