Is it permissible to pierce girls' ears so they may wear earrings?
Yes, it is permissible to pierce girls' ears and to wear earrings for adornment, if it does not harm the girl or change what Allah has naturally created. This was practiced in the Pre-Islamic era and during the lifetime of the Prophet (peace be upon him). Neither he, nor the Sahabah (his Companions) disapproved of it. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.