Ikrimah narrates from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that in the time of the Messenger of Allah (peace and blessings be upon him) a woman accepted Islam and then married. Her husband came and said: "O Messenger of Allah, I accepted Islam along with her, and she knows of my acceptance of Islam." So the Messenger of Allah (peace and blessings be upon him) took her from the second husband and returned her to the first.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 14071