Is it permissible for an architect to design buildings that will be used for sinful purposes, whether their original intended use is such or is expected to become such, and is he exempted from responsibility if he changes the names of places designated for sinful acts, and what is the ruling on someone who is coerced into designing such buildings?
It is not permissible for a Muslim, whether an engineer or otherwise, to assist in the construction of something that he knows or predominantly believes will be used for disobedience to Allah; this is based on the Almighty's saying: "And cooperate in righteousness and piety, but do not cooperate in sin and aggression."
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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