Shaan/Honour of a Mu'min

I read the following hadith on blog Pearls of Wisdom. Comprehend the sanctity of a Mu'min, or a God-fearing believer:

"Abdullah Ibne Abbas (may Allaah be pleased with him) narrates that Rasulullah (peace and blessings of Allaah be upon him) looked at the Ka'bah and said La Ilaha Illallah, how pure you are, and how sweet is your fragrance and how great is your honour! However the honour of a Mu'min (believer) is greater than yours. Indeed, Allah (subhanahu wa ta'ala) has made you respectable; (likewise) the wealth, the blood, and the honour of a Mu'min has been made respectable; and Allah( subhanahu wa ta'ala) has forbidden us to suspect him of wrongdoing." [Emphasis added.]

Source.