It wasnarrated from Muhammad bin Jubair bin Mut'im that his fathersaid:
"The Messenger of Allah (ﷺ) stood up in Khaif in Mina, andsaid:'May Allah make his face shine, the man who hears my words andconveys them. It may be that the bearer of knowledge does notunderstand it, and it may be that he takes it to one who willunderstand it more than he does. There are three things in which theheart of the believer does not betray: sincerity of action for thesake of Allah, offering sincere advice to the rulers of the Muslims,and adhering to the Jama'ah (main body of the Muslims). Theirsupplication is answered (i.e. encompassing every good, and all ofthepeople)."
English reference: Vol. 4, Book 25, Hadith 3056
Arabic reference: Book 25, Hadith 3172