Hadith 10:575
Abu Bakr narrated to us, he said: Abbad bin al-Awwam narrated to us, from Hajjaj, from Ata, regarding the Christian woman who embraces Islam while she is under [the marriage of] her husband. He said: They are to be separated.
حدثنا أبو بكر قال نا عباد بن العوام عن حجاج عن عطاء في النصرانية تسلم تحت زوجها قال يفرق بينهما