Al-Kāfi - Volume 5 > Marriage with Taxpayers and Pagans of Whom Certain Ones Become Muslims and other do not Become Muslims or all of them Become Muslims
Hadith #4

4- مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ الْحَسَنِ بْنِ مَحْبُوبٍ عَنْ عَبْدِ الرَّحْمَنِ بْنِ الْحَجَّاجِ عَنْ أَبِي الْحَسَنِ (عَلَيْهِ السَّلام) فِي نَصْرَانِيٍّ تَزَوَّجَ نَصْرَانِيَّةً فَأَسْلَمَتْ قَبْلَ أَنْ يَدْخُلَ بِهَا قَالَ قَدِ انْقَطَعَتْ عِصْمَتُهَا مِنْهُ وَلا مَهْرَ لَهَا وَلا عِدَّةَ عَلَيْهَا مِنْهُ.

4. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from al-Hassan ibn Mahbub from ‘Abd al- Rahman ibn al-Hajjaj who has said the following: “About the case of a man who is a Christian and marries a Christian woman who then becomes a Muslim before his going to bed with her, abu al-Hassan, ‘Alayhi al-Salam, has said, ‘The hindrance from him on her way is removed, she has no mahr (dower) and no waiting period because of him.’”