This Hadīth proves that fixing hair extensions is prohibited for women, as well as making tattoos for the sake of beauty and adornment. These acts are major sins for the following reasons: 1. Adding hair extensions involves cheating and imitation of the Jews, who were the first to add hair extensions. 2. Making tattoos constitutes change of the creation of Allah, the Almighty. Hence, both the one who does such acts and the one who has them done for her are cursed.