From Sahih Bukhari (Hadith 5205):
Narrated `Aisha:An Ansari woman gave her daughter in marriage and the hair of the latter started falling out. The Ansari women came to the Prophet (ﷺ) and mentioned that to him and said, "Her (my daughter's) husband suggested that I should let her wear false hair." The Prophet (ﷺ) said, "No, (don't do that) for Allah sends His curses upon such ladies who lengthen their hair artificially
Reference: Bukhari 5205