Islamic Interpretation of Dreams (Ibn-i Sirin):
If one sees himself in a dream invoking false oath, or making false claims to market his merchandise, it means that he will turn into that state to live in falsehood and oppose his own conscious.
This includes prejudice, belittling the value of things, underweighting the selling measures, or accumulating interest from usury.
A wheat salesman in a dream denotes someone who loves the world and does not think about his life in the hereafter.
If one sees himself receiving money for his merchandise, or if he discards his profits from the sale in his dream, such an act maybe rewarding.
Selling yarn in a dream means travel.
Selling salt in a dream means earning extra money.
Selling expensive fashion clothing and declining from taking money in a dream represents a trustworthy person who will attain a high ranking position.
A fruit salesman in a dream represents a hard-working man who gives priority to his religious life over that of the world.
An aromatic herbs salesperson in a dream represents a soft hearted man who cries easily, or a Quran reader who recites its verses in an emotional way that affects his listeners. Birds salesman in a dream represents a pimp, while a lead salesman in a dream represents someone with meagre goals.