(the wife of the Prophet) `Utba bin Abi Waqqas entrusted (his son) to his brother Sa`d bin Abi
Waqqas saying, "The son of the slave-girl of Zam`a is my (illegal) son, take him into your custody."
So during the year of the Conquest (of Mecca) Sa`d took the boy and said, "This is my brother's son
whom my brother entrusted to me." 'Abu bin Zam's got up and said, "He is my brother and the son of
the slave girl of my father and was born on my father's bed." Then both of them came to Allah's
Apostle and Sa`d said, "O Allah's Messenger (ﷺ)! This is my brother's son whom my brother entrusted to
me."
Then 'Abu bin Zam`a got up and said, "This is my brother and the son of the slave-girl of my father."
Allah's Messenger (ﷺ) said, "O Abu bin Zam`a! This boy is for you as the boy belongs to the bed (where he
was born), and for the adulterer is the stone (i.e. deprivation)." Then the Prophet (ﷺ) said to his wife
Sauda bint Zam`a, "Screen yourself from this boy," when he saw the boy's resemblance to `Utba.
Since then the boy did not see Sauda till he died.
Sahih al-Bukhari Book 55, Hadith 8
Yahya related to me from Malik that he had heard that Ali ibn Abi
Talib said about the two arbiters about whom Allah, the Exalted,
said,"If you fear a breach between the two, appoint an arbiter from
his people, and an arbiter from her people. If they desire to set
things aright, Allah will make peace between them, surely Allah is
Knowing, Aware," (Sura 4 ayat 35), that the separation and the joining
were overseen by the two of them.
Malik said, "That is the
best of what I have heard from the people of knowledge. Whatever the
two arbiters say concerning separation or joining is taken into
consideration "
Muwatta Malik Book 29, Hadith 79