Muwatta Imam Malik Book of Marriage, Hadith 46

Yahya related to me from Malik from Ibn Shihab that Umm Hakim bint al-Harith ibn Hisham who was the wife of Ikrima ibn Abi Jahl became muslim on the day of the conquest of Makka, and her husband Ikrima fled from Islam as far as the Yemen. Umm Hakim set out after him until she came to him in the Yemen and she called him to Islam, and he became muslim. He went to the Messenger of Allah ﷺ in the year of the conquest. When the Messenger of Allah ﷺ saw him, he rushed to him in joy and did not bother to put on his cloak until he had made the pledge with him. They were confirmed in their marriage.
Malik said, "If a man becomes muslim before his wife, a separation occurs between them when he presents Islam to her and she does not become muslim, because Allah, the Blessed, the Exalted, said in His Book, 'Do not hold fast to the ties of women who are kafirun.' "

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، أَنَّ أُمَّ حَكِيمٍ بِنْتَ الْحَارِثِ بْنِ هِشَامٍ، وَكَانَتْ، تَحْتَ عِكْرِمَةَ بْنِ أَبِي جَهْلٍ فَأَسْلَمَتْ يَوْمَ الْفَتْحِ وَهَرَبَ زَوْجُهَا عِكْرِمَةُ بْنُ أَبِي جَهْلٍ مِنَ الإِسْلاَمِ حَتَّى قَدِمَ الْيَمَنَ فَارْتَحَلَتْ أُمُّ حَكِيمٍ حَتَّى قَدِمَتْ عَلَيْهِ بِالْيَمَنِ فَدَعَتْهُ إِلَى الإِسْلاَمِ فَأَسْلَمَ وَقَدِمَ عَلَى رَسُولِ اللَّهِ ﷺ عَامَ الْفَتْحِ فَلَمَّا رَآهُ رَسُولُ اللَّهِ ﷺ وَثَبَ إِلَيْهِ فَرِحًا وَمَا عَلَيْهِ رِدَاءٌ حَتَّى بَايَعَهُ فَثَبَتَا عَلَى نِكَاحِهِمَا ذَلِكَ . قَالَ مَالِكٌ وَإِذَا أَسْلَمَ الرَّجُلُ قَبْلَ امْرَأَتِهِ وَقَعَتِ الْفُرْقَةُ بَيْنَهُمَا إِذَا عُرِضَ عَلَيْهَا الإِسْلاَمُ فَلَمْ تُسْلِمْ لأَنَّ اللَّهَ تَبَارَكَ وَتَعَالَى يَقُولُ فِي كِتَابِهِ {وَلاَ تُمْسِكُوا بِعِصَمِ الْكَوَافِرِ}.