Saad bin Abu Waqqas and Abd bin Zama disputed over a boy.Saad said, "My brother Utbah instructed me that when I arrived in Makkah, I should look for the son of Zama's slave-girl, for he is my brother's son."Abd bin Zama said, "He is the son of my father's slave-girl, born on my father's bed."The Messenger of Allah ﷺ noticed a clear resemblance to Utbah, but he said, "The child belongs to the bed. And you, Sawdah, must veil yourself from him."
أخبرنا إسحق بن إبراهيم قال حدثنا سفيان عن الزهري عن عروة
اختصم سعد بن أبي وقاص وعبد بن زمعة في ابن زمعة قال سعد أوصاني أخي عتبة إذا قدمت مكة فانظر ابن وليدة زمعة فهو ابني فقال عبد بن زمعة هو ابن أمة أبي ولد على فراش أبي فرأى رسول الله ﷺ شبها بينا بعتبة فقال رسول الله ﷺ الولد للفراش واحتجبي منه يا سودة
Bukhari narrated it in the Book of Disputes, Chapter on the Executor's Claim on Behalf of a Deceased Person, no. 2421, and Muslim in the Book of Suckling, Chapter on the Child Belonging to the Marriage Bed and Avoiding Doubtful Matters, no. 1457, from the hadith of Sufyan bin Uyayna through this chain, and it is also found in al-Kubra, no. 5681.