Are the one million dollars in my possession, acquired from selling a summarized book of another book that did not state its copyright was reserved, and then investing the profits in the electronics trade, halal or haram, or is part of it halal and part of it haram? And if there is a haram part in it, what is its amount?
The author's permission is not required to benefit from a summarized excerpt of their book. Rather, it is required to attribute statements to their sources, especially if the excerpt is a direct quote without modification or addition. Therefore, there is no harm in earning from selling this summary.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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