What is the obligation of the one in authority regarding following up on the conditions of the subjects?

The questioner : Shaykh 'Umar ibn al-Khattab went to Sham. You said that this is obligatory for them, or recommended, that they go out to see the conditions of the subjects with their own eyes. So now, what is obligatory for the ones in authority now regarding those whose knowledge is based on assumption, meaning they judge them by reports, and they are not trustworthy? And there are situations where the one in authority has two cases before him: a case where these reports are very numerous, and he cannot, with his own effort personally, follow up on them in his city or in the state he governs; or the reports or conditions are three, four, or five, and he can follow up on them. What is obligatory for him in both cases?

The Shaykh : He starts with the most important, then the next most important.

The questioner : And is he excused, meaning?

The Shaykh : First, it is obligatory for him to appoint the most sincere. He must appoint the one who is most sincere for the servants of Allah, and most truthful, and most pious. This is one. And the second is the matter that he cannot grasp, which requires more verification; he can handle it himself. And I have not learned that any human being knows everything with certainty or with the certainty of the eye. This is impossible.