´It was narrated that 'Aishah said:` "Sa'd bin Abi Waqqas and 'Abd bin Zam'ah disputed concerning a son of Zam'ah. Sa'd said: 'My brother 'Utbah urged me, if I came to Makkah: Look for the son of the slave woman of Zam'ah, for he is my son.' 'Abd bin Zam'ah said: 'He is the son of my father's slave woman who was born on my father's bed.' The Messenger of Allah saw that he resembled 'Utbah, but he said: 'The child is the bed's. Veil yourself from him, O Sawdah.'"
Hadith Referenceسنن نسائي / كتاب الطلاق / 3517
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه