For Marriage
Say everything at the beginning and consider all aspects. If all conditions are met, do it; otherwise, abandon it.
For Business / Deal
If you have weighed all aspects and there is no problem, proceed; otherwise, abandoning it is better.
فَإِن لَّمْ تَجِدُوا فِيهَا أَحَدًا فَلَا تَدْخُلُوهَا حَتَّىٰ يُؤْذَنَ لَكُمْ ۖ وَإِن قِيلَ لَكُمُ ارْجِعُوا فَارْجِعُوا ۖ هُوَ أَزْكَىٰ لَكُمْ ۚ وَاللَّهُ بِمَا تَعْمَلُونَ عَلِيمٌ
Fain lam tajidoo feeha ahadan fala tadkhulooha hatta yuthana lakum wain qeela lakumu irjiAAoo fairjiAAoo huwa azka lakum waAllahu bima taAAmaloona AAaleemun
If ye find no one in the house, enter not until permission is given to you: if ye are asked to go back, go back: that makes for greater purity for yourselves: and Allah knows well all that ye do.
