«أَخْرَسْ وَعَامِلْ قَاضِي»

The image places someone who cannot speak in a position where questioning the people before them is part of the work. The role demands an ability the person lacks.

More broadly, the proverb criticizes someone who puts themself forward for a task they cannot carry out. Its target is the mismatch between the responsibility assumed and the ability needed to fulfil it.

The proverb can be used to criticize a person who accepts responsibility for a task despite lacking a capacity essential to it. It is sharper than a comment about inexperience or an ordinary mistake.