Ata' bin Abi Rabah عطاء بن أبي رباح · The Book of Manumission of Slaves

My uncle brought me (to Medina) in the pre-Islamic days. He sold me to al-Hubab ibn Amr, brother of AbulYusr ibn Amr. I bore a child, AbdurRahman ibn al-Hubab, to him and he (al-Hubab) then died. Thereupon his wife said: I swear by Allah, now you will be sold (as a repayment) for his loan. So I came to the Messenger of Allah (ﷺ) and said: Messenger of Allah! I am a woman of Banu Kharijah Qays ibn Aylan. My…

We sold slave-mothers during the time of the Messenger of Allah (ﷺ) and of AbuBakr. When Umar was in power, he forbade us and we stopped.

A man declared that his slave would be free after his death, but he had no other property. So the Prophet (ﷺ) ordered (to sell him). He was then sold for seven hundred or nine hundred (dirhams).