Limits of Profit in Sales

Question:
Is it permissible for a person who buys a commodity for ten riyals to sell it for fifty? And what are the Shari'ah limits for profit?

Answer:
This depends on the market; the market is what determines it. Goods may become scarce and prices rise, or goods may become abundant and prices fall. Prices fluctuate according to supply and demand, and this is in the hand of Allah (Glorified and Exalted is He). There is no fixed limit for profit because it is subject to fluctuation. The Prophet (peace and blessings be upon him) said when they asked him to fix prices: The one who holds back goods is not permitted to engage in manipulation. Manipulation is prohibited. One who creates artificial scarcity of goods without a true cause is prohibited from doing so, and he is compelled to sell at the same price as other people sell, according to the value in the market. As for the one who does not hold back, but prices rise due to the scarcity of goods and the large number of buyers, no one can prevent that. Allah (Glorified and Exalted is He) has not set a limit; He is the Withholder and the Expander, the Withholder and the Expander (Glorified and Exalted is He). Yes.