For Marriage
You have many differences, and if performed, you will deeply regret it, but by then it will be too late.
For Business / Deal
It is by no means a good transaction; it must be abandoned.
وَكَمْ قَصَمْنَا مِن قَرْيَةٍ كَانَتْ ظَالِمَةً وَأَنشَأْنَا بَعْدَهَا قَوْمًا آخَرِينَ
Wakam qasamna min qaryatin kanat thalimatan waanshana baAAdaha qawman akhareena
How many were the populations We utterly destroyed because of their iniquities, setting up in their places other peoples?