Shaykhul Hadeeth Hadhrat Maulana Muhammad Zakariyya Sahab (may Allah have mercy on him) writes,
For quite some time there has been one question which has been put to me repeatedly in letters: “Why did Shaykh XYZ give permission to initiate murid (ijazat) to so-and-so?”
In reply to foolish questions like these, I always answer: “If Angels Munkar and Nakeer should ask you this question in the grave, then by all means you may answer: ‘I do not not know.’”
[Aap Beeti Part V, pg 657]
Moreover, it is a fact that only a person who considers himself to be superior judges others to be not worhty of what they are. This is crystal clear arrogance (kibr). The mother of all moral maladies (umm al-amradh).