What requirement must a Muslim inmate adhere to according to the beliefs mentioned?

The belief system within Islam encourages practices that are often influenced by religious texts and traditions. Maintaining a beard is considered a Sunnah, or a practice exemplified by the Prophet Muhammad, and many Muslim men choose to grow beards as a form of religious observance and personal identity. This practice is viewed as a physical representation of faith and compliance with Islamic teachings, which is why it is often highlighted as a requirement for Muslim inmates within correctional facilities.

While other practices like attending religious services or reading the Quran may also be important to individual Muslims, the requirement to maintain a beard stands out as a widely recognized and culturally significant aspect of male Muslim identity.