For Marriage
It is bad. You will have a life full of hardship and torment. Abandon it.
For Business / Deal
It is bad; you will endure much hardship and suffering, and in the end, you will not achieve the desired result.
قُل لِّلْمُخَلَّفِينَ مِنَ الْأَعْرَابِ سَتُدْعَوْنَ إِلَىٰ قَوْمٍ أُولِي بَأْسٍ شَدِيدٍ تُقَاتِلُونَهُمْ أَوْ يُسْلِمُونَ ۖ فَإِن تُطِيعُوا يُؤْتِكُمُ اللَّهُ أَجْرًا حَسَنًا ۖ وَإِن تَتَوَلَّوْا كَمَا تَوَلَّيْتُم مِّن قَبْلُ يُعَذِّبْكُمْ عَذَابًا أَلِيمًا
Qul lilmukhallafeena mina alaAArabi satudAAawna ila qawmin olee basin shadeedin tuqatiloonahum aw yuslimoona fain tuteeAAoo yutikumu Allahu ajran hasanan wain tatawallaw kama tawallaytum min qablu yuAAaththibkum AAathaban aleeman
Say to the desert Arabs who lagged behind: "Ye shall be summoned (to fight) against a people given to vehement war: then shall ye fight, or they shall submit. Then if ye show obedience, Allah will grant you a goodly reward, but if ye turn back as ye did before, He will punish you with a grievous Penalty."