assalam allaikum w r w b. this website is offering a guidance to ummah.sir i am 34 year doctor . my scalp hairs are almost gray and beard also started to be graying. last few years i was using natural henaa. sir can i color my hairs with artificial dye? can i color beard too? is black color allowed ? Is it going to affect wudu ,gusl ,prayer or ibadat ? please guide me .zajak ALLAH.