Q 3: What is the ruling on
offering Salah (prayer) behind a clean-shaven Imam (the one who leads congregational Prayer) who also mocks bearded men
and orders them to shave their beard off?
It is not permissible to mock a bearded man as he grows his beard in compliance with the command of the Prophet (peace be upon him) thereof. Moreover, the mocker should be advised and instructed (Part No. 2; Page No. 55) that mocking people who grow their beards is a great sin whose doer is feared to be committing an act of Riddah (apostasy) from Islam. Allah (Exalted be He) says (what means):
Say: "Was it at Allâh (عز وجل), and His Ayât (proofs, evidence, verses, lessons, signs, revelations) and His Messenger (صلى الله عليه وسلم) that you were mocking?"
Make no excuse; you disbelieved after you had believed.
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.