Sayyiduna Abu Dharr (may Allah be pleased with him) said to Yazid bin Abu Sufyan: I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: "The first person to alter my Sunnah will be from among the Banu Umayyah."
Hadith Referenceسلسله احاديث صحيحه / الفتن و اشراط الساعة والبعث / 3719