The Meaning of the Prophet's (peace and blessings be upon him) Saying: "Say: And whoever disobeys Allah and His Messenger"

Question:
This person is asking about the Messenger (peace and blessings be upon him) when he said to the preacher, after the preacher said, "Whoever obeys Allah and His Messenger has succeeded, and whoever disobeys them has gone astray, or rather, he harms only himself," the Prophet (peace and blessings be upon him) said to him, "What a bad preacher you are! Say, 'Whoever disobeys Allah and His Messenger,'" meaning he replaced "whoever disobeys them" with "whoever disobeys Allah and His Messenger."

Answer:
"Say, 'Whoever disobeys Allah and His Messenger'" is intended to dispel the misconception that a person is not considered disobedient unless he disobeys both Allah and His Messenger, whereas if he disobeys the Messenger alone, he is not considered disobedient. This is what the Messenger (peace and blessings be upon him) intended to remove this misconception, so that listeners do not understand that one is not disobedient unless he disobeys Allah and His Messenger, while one who disobeys the Messenger alone is not disobedient.