Musannaf Ibn Abi Shayba 18:877

Abu Bakr narrated to us, he said: Hafs narrated to us, from Ibn Jurayj, from Ayyub, from Abu Qilabah, that a woman used to perform female circumcision on young girls, and she caused harm (or injury), so Umar held her liable (for damages) and said: "Why did you not leave such and such?"