Musannaf Ibn Abi Shaybah

Hazrat Jabir bin Zaid considers it undesirable for a brother to sell against his brother.

Hasan considered it disliked to sell a foster sister and a foster grandmother.

Hassan was asked about selling a foster brother, and he considered it disliked. The narrator says that I mentioned this to Hazrat Qatadah, and he said that Hazrat Jabir bin Zaid held the same opinion, and Ibrahim Nakha'i said that if he wishes, he can sell.

Hasan says that it is disliked to sell a foster brother.

Hazrat Alqamah narrates that a man asked Hazrat Abdullah, "My slave woman has breastfed my son. Can I sell this slave woman?" Hazrat Abdullah (may Allah be pleased with him) expressed displeasure at this and said, "How strange it would be that you take her to the market and call out, 'Who will buy the mother of my child from me?'"