It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that the Noble Prophet (peace and blessings be upon him and his family) entrusted his daughter Sayyida Zainab (may Allah be pleased with her) to her husband Sayyiduna Abu Al-As bin Rabi’ with the first marriage itself, and no new marriage was conducted.

(Second chain) The Noble Prophet (peace and blessings be upon him and his family) returned his daughter, Sayyida Zainab (may Allah be pleased with her), to her husband, Sayyiduna Abu al-As ibn al-Rabi', with the original marriage contract, even though Sayyida had embraced Islam six years before her husband. The Prophet (peace and blessings be upon him and his family) neither required new witnesses nor demanded a new dowry.

It is narrated from Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with them both) that the Noble Prophet (peace and blessings be upon him and his family) returned his daughter to Sayyiduna Abu al-As with a new dowry and a new marriage contract.