Abdullah bin Mas'ud (may Allah be pleased with him) reports from the Messenger of Allah (peace and blessings be upon him): "Soon a people will take charge of your affairs who will extinguish the Sunnah, introduce innovations and delay the prayers from their times." Ibn Mas'ud (may Allah be pleased with him) says: I said: "O Messenger of Allah! If I meet them, what should I do?" He (peace and blessings be upon him) said: "O son of Umm Abd! There is no obligation to obey one who disobeys Allah." He (peace and blessings be upon him) said this three times.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 5336