Amr bin Shu'ayb narrates from his father, from his grandfather (may Allah be pleased with him), that the Prophet (peace and blessings be upon him) returned his daughter Zaynab (may Allah be pleased with her) with a new dowry and a new marriage contract.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 14069