Beard (Darhee) And Covering Head As Nafil
Ghamidi sahab has clearly answered your question in regards to beard. Please see the following video from 00:58:00 to 00:58:30 . The same can be applied to head covering also. In short, if someone tries to imitate Prophet Muhammad SAW or other revered personalities, that’s certainly a good act. However, it should not be considered a part of religion. When we say nafl , it gives it a religious connotation and therefore I personally avoid that terminology in order to avoid any confusion. https://youtu.be/1_KSBdJyaRg?start=58m