( قالوا ) يعني المنادي وأصحابه ( فما جزاؤه ) أي : جزاء السارق ( إن كنتم كاذبين ) في قولكم " وما كنا سارقين " .
The caller and his companions asked what the punishment for theft among them was, in case they should be proved to be liars in their claim that they were innocent of the theft.