Maymun bin Abi Shabib narrates from Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) that Sayyiduna Ali (may Allah be pleased with him), when selling a slave woman and her child, separated them, and the Messenger of Allah (peace and blessings be upon him) forbade him from that.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18305
Abd al-Salam bin Harb narrates something similar: that he separated a slave woman and her child, and the Prophet (peace and blessings be upon him) "forbade him and annulled the sale."
Abu Dawud said: Maymun did not meet Ali (may Allah be pleased with him).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18306
Maymun bin Abi Shabib says that Sayyiduna Ali (may Allah be pleased with him) said: I obtained a slave woman along with her son. I intended to sell the slave woman and keep the child, but he (peace and blessings be upon him) said to me: "Sell them both or keep them both."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18307
Ja'far bin Muhammad narrates from his father, from his grandfather, that Sayyiduna Abu Usayd al-Ansari (may Allah be pleased with him) brought captives from Bahrain, and they were lined up in rows. The Prophet (peace and blessings be upon him) stood and looked at them, and a woman was weeping. He (peace and blessings be upon him) asked: "What has made you weep?" She said: My son has been sold among the tribe of Abs. So the Prophet (peace and blessings be upon him) said to Sayyiduna Abu Usayd (may Allah be pleased with him): "You must ride and bring him back, for the price at which you sold him." So Sayyiduna Abu Usayd (may Allah be pleased with him) rode and brought him back.
This, although it has irsal (a missing link) in it, is a good mursal report, a corroboration of what preceded.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18308
Sayyiduna Abu Ayyub al-Ansari (may Allah be pleased with him) says: I heard the Messenger of Allah (peace and blessings be upon him) say: "Whoever separates a mother and her child, Allah will separate him from his loved ones on the Day of Resurrection."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18309
Sayyiduna Abu Ayyub al-Ansari (may Allah be pleased with him) says: I heard the Messenger of Allah (peace and blessings be upon him) say: "Whoever separates a child from its mother, Allah, the Lord of Might, will separate him from his loved ones on the Day of Resurrection."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18310
Husayn bin Abdullah bin Dumayrah narrates from his father, from his grandfather (may Allah be pleased with him), that the Messenger of Allah (peace and blessings be upon him) passed by the mother of Dumayrah while she was weeping. He (peace and blessings be upon him) asked: "What makes you weep? Are you hungry, or are you without clothing?" She said: O Messenger of Allah! I have been separated from my son. The Messenger of Allah (peace and blessings be upon him) said: "A mother and her child are not to be separated." Then he (peace and blessings be upon him) sent for the man who had Dumayrah, called him, and bought him from him for a young she-camel.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18311
Imam al-Sha'bi (may Allah have mercy on him) says that Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) appointed Sayyiduna Shurahbil bin al-Simt (may Allah be pleased with him) as governor of al-Mada'in, while his father was in Sham. He wrote to Sayyiduna Umar (may Allah be pleased with him): You have ordered that captives are not to be separated from their children, yet you have separated me from my father. So Sayyiduna Umar (may Allah be pleased with him) wrote to him and joined him to his father.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18312
Ayyub (may Allah have mercy on him) says that Sayyiduna Uthman bin Affan (may Allah be pleased with him) ordered that slaves be bought for him, and said: "A father and his child are not to be separated."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18313
Salim bin Abdullah narrates from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that a slave woman and her child are not to be separated in a division (of property). Salim bin Abdullah said: Even if the division does not come out equal? Abdullah (may Allah be pleased with them both) said: Even if the division does not come out equal.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18315