Ibn ‘Abbas reported the Prophet as saying, “When a man’s slave-woman bears him a child she becomes free at his death.”*
Darimi transmitted it.
* The text has 'au durbur in minhu au ba'dahu’ indicating a doubt on the part of a transmitter as to which words were used. Both expressions amount to the same thing so it seems sufficient to give "at his death" in the translation above.
Al-Hasan, on Samura’s authority, reported God's Messenger as saying, “If anyone gets possession of a relative who is within the prohibited degrees, that person becomes free.”
In the time of God’s Messenger and of Abu Bakr we sold slave women who had borne children, but when ‘Umar was in power he forbade us to do so and we stopped.
Narrated Jabir said that a man of the Ansar declared that a slave would be free after his death, but he had no other property, so when the Prophet heard of that he said, “Who will buy him from me ?” and Nu'aim b. an-Nahham bought him for eight hundred dirhams. A version by Muslim says Nu'aim b. ‘Abdallah al-:
if anything is left over give it to your family; if anything is left over when they have received something, give it to your relatives; and if anything is left over when they have received something, do thus and thus,” meaning that it should be distributed in front of him, on his right and on his left.