For Marriage
You will have a bad life, and as life goes on, the situation will get worse. Abandon it.
For Business / Deal
You will see a massive loss, leading to severe regret. Do not do it.
وَقَالُوا لِجُلُودِهِمْ لِمَ شَهِدتُّمْ عَلَيْنَا ۖ قَالُوا أَنطَقَنَا اللَّهُ الَّذِي أَنطَقَ كُلَّ شَيْءٍ وَهُوَ خَلَقَكُمْ أَوَّلَ مَرَّةٍ وَإِلَيْهِ تُرْجَعُونَ
Waqaloo lijuloodihim lima shahidtum AAalayna qaloo antaqana Allahu allathee antaqa kulla shayin wahuwa khalaqakum awwala marratin wailayhi turjaAAoona
They will say to their skins: "Why bear ye witness against us?" They will say: "Allah hath given us speech,- (He) Who giveth speech to everything: He created you for the first time, and unto Him were ye to return.