Dole ne Khalifah ya rika bincikar ayyukan gwamnoni, ya kuma rika tantance aikinsu sosai da tsauri. Ya kamata ya naɗa mutane su sa ido kan halayensu, su bincika al'amuransu, kuma lokaci-lokaci ya tara dukkansu ko wasu daga cikinsu, ya saurari korafe-korafen al'ummar da ke ƙarƙashinsu a kansu.

The Khalifah must examine the actions of the governors and continually assess their performance strictly. He must deputise people to monitor their situations, investigate them, and periodically gather all or some of them, and listen to the complaints of the subjects regarding them.

An tabbata cewa Manzon Allah ﷺ yana gwada gwamnoni a lokacin da yake nada su, kamar yadda ya yi da Mu'azu da Abu Musa, kuma yana bayyana musu yadda ya kamata su yi aiki, kamar yadda ya yi da Amr bn Hazm a cikin wasikarsa wadda ta shahara a wurin malamai, kamar yadda Ibn 'Asakir ya ambata a cikin Tarikh Dimashq, kuma Al-Hafiz ya ambata a cikin Al-Isaba.

It is confirmed that the Prophet (phuh) used to test the governors when he appointed them as he did with Mu’adh and Abu Musa, and explained to them how they should proceed as he did with Amr b. Hazm in his message famous amongst the people of knowledge as mentioned by Ibn ’Asakir in Tarikh Damascus and Al-Hafiz said in Al-Isaba.