For Marriage
This marriage does not have a good future; you will face many hardships and difficulties. It does not end well.
For Business / Deal
There is no benefit in this transaction; if performed, you will suffer loss and damages.
إِنَّ ٱلَّذِينَ كَفَرُوا۟ سَوَآءٌ عَلَيْهِمْ ءَأَنذَرْتَهُمْ أَمْ لَمْ تُنذِرْهُمْ لَا يُؤْمِنُونَ
Inna allatheena kafaroo sawaonAAalayhim aanthartahum am lam tunthirhum layu/minoon
As to those who reject Faith, it is the same to them whether thou warn them or do not warn them; they will not believe.
