ماذا يفعل شخص يشك في وجود سحر بطعام قُدّم له؟

If someone is offered something they suspect might be harmful, it is permissible for them to leave it. If they are certain of harm, then it is obligatory for them to leave it, based on the principle that whatever contains harm is prohibited, as stated in the Hadith: "There should be neither harm nor reciprocating harm," and according to the rule: "The origin of everything harmful is prohibition."