Sentence:  Mujtahidd's online claims have prompted an aggressive backlash against social media from the Saudi religious establishment. The grand <WSD>mufti</WSD> of Saudi Arabia, Sheikh Abdul-Aziz al-Sheikh, said in January that Twitter was a platform for "promoting lies" and a "dangerous practice" that should be avoided by Muslims. Commentators have described the phenomenon as symbolic of the growing political debate about use of Twitter in Saudi Arabia. 
Meaning of the word marked with <WSD> tags:  A Muslim scholar and interpreter of shari'a law, who can deliver a fatwa.