Abdur Rahman bin Harmaz al-A'araj عبد الرحمن بن هرمز الأعرج أبو داود · The Book of Adornment

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."