For Marriage
Observe the conditions mentioned above; if successful in meeting them, proceed; otherwise, abandon it.
For Business / Deal
If done after consulting with experts, it is good; otherwise, abandon it.
وَلَا تَنفَعُ الشَّفَاعَةُ عِندَهُ إِلَّا لِمَنْ أَذِنَ لَهُ ۚ حَتَّىٰ إِذَا فُزِّعَ عَن قُلُوبِهِمْ قَالُوا مَاذَا قَالَ رَبُّكُمْ ۖ قَالُوا الْحَقَّ ۖ وَهُوَ الْعَلِيُّ الْكَبِيرُ
Wala tanfaAAu alshshafaAAatu AAindahu illa liman athina lahu hatta itha fuzziAAa AAan quloobihim qaloo matha qala rabbukum qaloo alhaqqa wahuwa alAAaliyyu alkabeeru
"No intercession can avail in His Presence, except for those for whom He has granted permission. So far (is this the case) that, when terror is removed from their hearts (at the Day of Judgment, then) will they say, 'what is it that your Lord commanded?' they will say, 'That which is true and just; and He is the Most High Most Great'."