In 1988 Mirza Tahir Ahmad gave a challenge of Mubahila (prayer duel) to the entire Muslim Ummah, labeling them as disbelievers and liars.
Mnamo mwaka 1988 Mirza Tahir Ahmad alitowa chagizo la Mubahila (duwa ya maapizano) kwa Umma mzima wa Waislamu, akiwaita makafiri na waongo.