From Sahih Bukhari (Hadith 5943):
Narrated Ibn Mas`ud:Allah has cursed those women who practise tattooing or get it done for themselves, and those who remove hair from their faces, and those who create spaces between their teeth artificially to look beautiful, such ladies as change the features created by Allah. Why then shall I not curse those whom Allah's Messenger (ﷺ) has cursed and who are cursed in Allah's Book too?
Reference: Bukhari 5943