Hair Extensions?

Shaykh Ibn ‘Uthaymeen (may Allah have mercy on him) was asked,

Q: How sound is this hadeeth and what is meant by it: May Allah curse the one who adds hair extensions and the one who has them added…”? Does it refer to hair that is made from hair that has fallen out (i.e., natural hair), or hair that is manufactured from fibres and other artificial materials? 

A: The one who does hair extensions is the one who attaches them to the head of another woman, and the woman who has them added is the one who asks for that to be done to her. Attaching hair to the hair of the head (hair extensions) is haraam; indeed it is a major sin, because the Prophet (blessings and peace of Allah be upon him) cursed the one who does that. 

The scholars differed concerning attaching something other than hair to the hair. Some of them said that it is not permissible, because the Prophet (blessings and peace of Allah be upon him) forbade women to attach anything to their hair, and the word anything is general in meaning and includes hair and other things. 

Based on that, it is not permissible to attach to the natural hair artificial hair that resembles the hair created by Allah, may He be glorified and exalted; rather that is included in this hadeeth. This hadeeth contains a stern warning to the one who does that, because the Messenger (blessings and peace of Allah be upon him) said: May Allah curse the one who adds hair extensions and the one who has them added.” What is meant by being cursed is being excluded and banished far away from the mercy of Allah. The scholars have stated that every sin for which Allah, may He be exalted, has decreed the punishment of being cursed is a major sin. [Noor ‘ala ad-Darb.]