A normative, and prominent feature of the Shari'a

A lesson in the delights of dhimmitude by Andrew G. Bostom

...the dhimmi is obliged not to mention Allah or His Apostle.. .Jews, Christians, and Majians must pay the jizya [poll tax on non-Muslims]...on offering up the jizya, the dhimmi must hang his head while the official takes hold of his beard and hits [the dhimmi] on the protruberant bone beneath his ear [i.e., the mandible]... They are not permitted to ostentatiously display their wine or church bells...their houses may not be higher than the Muslim's, no matter how low that is. The dhimmi may not ride an elegant horse or mule; he may ride a donkey only if the saddle-work is of wood. He may not walk on the good part of the road. They [the dhimmis] have to wear [an identifying] patch [on their clothing], even women, and even in the [public] baths...[dhimmis] must hold their tongue.