Musnad Ahmad #1270

It was narrated that Abu `Abdur-Rahman as-Sulami said: `Ali (رضي الله عنه )addressed us and said: O people, carry out the hadd punishments on your slaves, both those who have been married and those who have not been married, for a slave woman of the Messenger of Allah (ﷺ) committed zina and the Messenger of Allah (ﷺ) ordered me to carry out the hadd Punishment on her. I went to her and found that she was still bleeding following childbirth, and I was afraid that if I flogged her she would die So I went to the Messenger of Allah (ﷺ) and told him about that, and he said: “You have done well.”