The Messenger of Allah cursed the woman who affixes hair extensions.
Sunan an-Nasa'i Book 48, Hadith 210
← Previous Hadith The Messenger of Allah forbade giving a false impression, and the false impression of a woman when she adds extra hair to her head.

Sunan an-Nasa'i Book 48, Hadith 209 Next Hadith → A woman came to the Messenger of Allah , a daughter of mine is going to get married. She got sick and her hair fell out. Is there any sin on me if I give her hair extensions?" He said: "Allah has cursed the woman who affixes hair extensions and the one who has that done."

Sunan an-Nasa'i Book 48, Hadith 211