For Marriage
There is no goodness (Khayr) or benefit in it. Abandon it.
For Business / Deal
You will fall into Haram and be deceived. Abandon it.
يَا أَيُّهَا الَّذِينَ آمَنُوا إِن تُطِيعُوا الَّذِينَ كَفَرُوا يَرُدُّوكُمْ عَلَىٰ أَعْقَابِكُمْ فَتَنقَلِبُوا خَاسِرِينَ
Ya ayyuha allatheena amanoo in tuteeAAoo allatheena kafaroo yaruddookum AAala aAAqabikum fatanqaliboo khasireena
O ye who believe! If ye obey the Unbelievers, they will drive you back on your heels, and ye will turn back (from Faith) to your own loss.
