Is it permissible for a Muslim to participate as an exhibitor in an exhibition, the occurrence of which he is aware of, after he had decided against participating in its organization and paid the exhibitor’s fee like any other exhibitor, knowing that another Muslim brother is following up on the matter with the exhibition management and that his involvement in the organization is limited? And is it obligatory for him to ask the Muslim brother about his relationship with the exhibition management?
There is no harm in participating in the exhibition to display what is permissible or to benefit from the project, provided that one avoids Shariah violations. And whoever sees an evil, let him change it with his hand; if he is unable, then with his tongue; if he is unable, then with his heart, and that is the weakest of faith.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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