Sayyiduna Awf bin Malik (may Allah be pleased with him) says: The Messenger of Allah (peace and blessings be upon him) came out to us at midday in a state of alarm, and he (peace and blessings be upon him) said: "Obey me as long as I am among you, and hold fast to the verses of Allah: regard as lawful what He has made lawful, and regard as unlawful what He has made unlawful."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15156