Sunan Ibn Majah, Chapter: The Chapters on Hajj

that his father said: "The Messenger of Allah (saw) stood up in Khaif in Mina, and said: 'May Allah make his face shine, the man who hears my words and conveys them. It may be that the bearer of knowledge does not understand it, and it may be that he takes it to one who will understand it more than he does. There are three things in which the heart of the believer does not betray: sincerity of action for the sake of Allah, offering sincere advice to the rulers of the Muslims, and adhering to the Jama'ah (main body of the Muslims). Their supplication is answered (i.e. encompassing every good, and all of the people)."