The great Muslim prayer. Composition and Cinematography by Mr. R. Alexander. This film was made in the great Tlemcen Mosque (Algeria). The muezzin from the top of the minaret calls the faithful to prayer. The great prayer takes place each Friday. Before starting the devotions, the religion of Allah calls for the faithful to make ablutions. The great prayer. During this time, the wives, who aren't allowed into the mosque, go to pray in the cemetery. Muslims are often considered to have best conserved their ancient traditions, compared to other groups.