It is narrated from Sayyiduna Hudhayfah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Soon there will be rulers over you who will lie. Whoever affirms them in their lies and helps them in their oppression is not of me and I am not of him. And whoever does not affirm them in their lies and does not help them in their oppression is of me and I am of him, and he will come to me at the Pond tomorrow, if Allah wills."
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3007