Yahya related to me from Malik from Rabia ibn Abi Abd ar-Rahmanfrom al-Qasim ibn Muhammad that A'isha umm al-muminin, said, "Therewere three sunnas established in connection with Barira:
firstly wasthat when she was set free she was given her choice about her husband,secondly, the Messenger of Allah, may Allah bless him and grant himpeace, said about her, 'The right of inheritance belongs to the personwho has set a person free,' thirdly, the Messenger of Allah, may Allahbless him and grant him peace, came in and there was a pot with meaton the boil. Bread and condiments were brought to him from the stockof the house. The Messenger of Allah, may Allah bless him and granthim peace, said, 'Didn't I see a pot with meat in it?' They said,'Yes, Messenger of Allah. That is meat which was given as sadaqa forBarira, and you do not eat sadaqa.' The Messenger of Allah, may Allahbless him and grant him peace, said, 'It is sadaqa for her, and it isa gift for us.' "
USC-MSA web (English) reference: Book 29, Hadith 25
Arabic reference: Book 29, Hadith 1182