What is the advice for a young Muslim man who was instrumental in a foreign girl's conversion to Islam, but whose family rejected their marriage, and she has no one but him and wishes to stay with him to avoid temptation, especially since her parents are not Muslim and she supports them and fears returning to her hometown where there are no Muslims? And would helping her learn Islam and trying to guide her parents be considered an acceptable act if he considers her his sister?

The young man's act of being the cause for this woman's guidance is a great deed. If it is easy for him to marry her and he treats her well and helps her learn her religion, his reward will be magnified. His family should not prevent him from marrying her without a legitimate religious reason, and he may strive to convince them. If his parents do not agree, obedience to them takes precedence, unless his heart is attached to her and he fears temptation, in which case he may marry her even without their permission. If she does not have a Muslim guardian, the Muslim ruler or the Sharia judge can marry her off, or she can appoint a righteous Muslim man as her representative. If he does not marry her, he can help her search for a suitable husband and assist her in learning her religion, but he must treat her as a non-mahram.