Sahih Bukhari
Wedlock, Marriage (Nikaah)
Volume: 007 / Book Number: 062 / Hadith Number: 133
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 and mentioned that to him and said, "Her (my daughter's) husband suggested that I should let her wear false hair." The Prophet said, "No, (don't do that) for Allah sends His curses upon such ladies who lengthen their hair artificially."