Ibn Shihab (may Allah have mercy on him) said: It has not reached me of any woman who emigrated to Allah and His Messenger (peace and blessings be upon him) while her husband remained a disbeliever residing in the abode of disbelief, except that her emigration separated her from her husband, unless her husband comes as an emigrant before her waiting period ends, in which case there is no separation. And it has not reached us that a woman was separated from her husband when he came while she was still in her waiting period.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 14065