For Marriage
It is a suitable case. Express your matters with a kind tongue (Zaban-e-Khosh). Insha'Allah, you will find a blessed end.
For Business / Deal
Proceed with a kind tongue (Zaban-e-Khosh); it will be a good transaction, Insha'Allah.
وَاجْعَل لِّي لِسَانَ صِدْقٍ فِي الْآخِرِينَ
WaijAAal lee lisana sidqin fee alakhireena
"Grant me honourable mention on the tongue of truth among the latest (generations);