It was narrated from 'Amr bin Shu'aib, from his father, from his grand father, that:
the Messenger of Allah, returned his daughter Zainab to Abul-As bin Rabi', with a new marriage contract. (IT)
English reference (IT): Vol. 3, Book 9, Hadith 2010 (IT)
Arabic reference (IT): Book 9, Hadith 2088 (IT)