It is narrated from Sayyiduna Ubadah bin al-Samit (may Allah be pleased with him) that he heard the Messenger of Allah (peace and blessings be upon him) saying: "Soon after me, men will take charge of your affairs who will acquaint you (as right) with things you know to be wrong (according to the Shari'ah), and will declare wrong for you the things you know to be right. So there is no obedience (due) to whoever disobeys Allah."
Hadith Referenceالمعجم الأوسط / باب الألف / 2894
Hadith Takhrij«أخرجه الحاكم فى «المستدرك» برقم: 5574، 5575، 5576، 5577، وأحمد فى «مسنده» برقم: 23233»