"If anyone violates the rule [they] will be punished and no one has a right to complain," said the order issued to the barbers.
Muhammad Kashif said he recognized one of the attackers as someone who had previously verbally abused him.
New research adds weight to the idea that people became less hairy via sexual selection, with results suggesting women with higher levels of disgust prefer clean-shaven men.
Metropolitan Kornily, Primate of the Russian Orthodox Old Believer Church, told a Russian media outlet that "God created everyone with a beard."
Overall, men sporting heavy stubble were considered to be the hottest among women.
Tajik police also prevented 1,700 from wearing headscarves in a battle against radical Islam.
There are 18 categories, ranging from delicate mustache to "full beard freestyle."