the Prophet cursed the woman who does hair extensions and the one who has that done, and the woman who does tattoos and the one who has that done. (Using translation from Ibn Mājah 1987)
أَنَّ النَّبِيَّ ﷺ «لَعَنَ الْوَاصِلَةَ وَالْمَوْصُولَةَ وَالْوَاشِمَةَ وَالْمَوْشُومَةَ»