Sayyiduna Jubayr bin Mut'im (may Allah be pleased with him) narrates: I heard the Messenger of Allah (peace and blessings be upon him) say at al-Khayf, the Khayf of Mina: "May Allah keep radiant the servant who heard my words, memorised them and preserved them, then conveyed them to one who did not hear them; for often the bearer of fiqh (understanding) is not himself a faqih, and often the bearer of fiqh conveys it to one who has more understanding than he. There are three things about which the heart of a believer never acts treacherously: sincerity of deeds for Allah, sincere goodwill towards the rulers of the Muslims, and staying with their community (jama'ah); for their call encompasses those behind them."
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 1528