Did he convey such knowledge to the first one (Khalifa)?

Did he convey such knowledge to the first one (Khalifa)?" If they say, "Yes, the Messenger of Allah did convey." Ask, "Did the Messenger of Allah die and the Khalifa after him had the knowledge free of disharmony ?" If they would say, "No, there was no such Khalifa with the knowledge free of disharmony." Say, "(This is not logical.) The successor of the Messenger of Allah is supported (has the Divine support) and the Messenger of Allah does not appoint a Khalifa who would not judge by the laws of Allah.

The Messenger of Allah will not appoint a Khalifa except one who is just like him, excluding prophet-hood. If the Messenger of Allah did not…