What specific public displays of non-Islamic practices by Dhimmis are forbidden?

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The public exhibition of perceived wrongdoing is forbidden, encompassing five categories: establishing new churches or similar structures; raising their voices while reciting their holy books among Muslims; publicly displaying intoxicants (alcohol/wine) or pigs; sounding bells (nāqūs); building structures taller than those of Muslims; and residing in the Ḥijāz or entering the Ḥaram (sacred precincts). These prohibitions are obligatory upon them regardless of whether they were explicitly stipulated in the agreement or not.