What is the ruling regarding someone who commits adultery with a woman abandoned by her husband, knowing she is not Muslim? Is his repentance accepted? And is it permissible for him to marry her if she converts to Islam?

It is permissible for a Muslim man to marry a chaste woman from the People of the Book, but it is better to marry a righteous Muslim woman. And whoever has intercourse with a foreign woman has committed adultery, and the sin of adultery with a married woman is greater because it involves an assault on her husband's right. Many jurists have stipulated that if a man is forced to commit adultery with a married woman, he must accept death rather than proceed with the act.