If it is known that some property of this kind exists in a town, but the particular property cannot be identified, people are not prohibited from buying in that town. However, if most of a man’s wealth is unlawful, are dealings with him prohibited or merely disliked? There are two views. If most of his wealth is lawful, dealings with him are not prohibited. Nevertheless, it has been said that such dealings fall among the doubtful matters that it is recommended to avoid. And Allah knows best.

He also said:

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I have mentioned in more than one place that everything prohibited in Islamic law comes down to wrongdoing, whether concerning the rights of Allah Most High, the rights of the individual, or the rights of other people. Whenever a person wrongs others, he also wrongs himself, but the reverse is not true. Thus, all sins fall within a person’s wrongdoing against himself.

The first to acknowledge this was the father of mankind when he received the words from his Lord and said:

“Our Lord, we have wronged ourselves, and if You do not forgive us and have mercy upon us, we will surely be among the losers.”

These words contained his acknowledgment of his sin and his plea to his Lord, in utter need, for forgiveness and mercy. Forgiveness is the removal of evil deeds, while mercy is the bestowal of