Abd al-Rahman bin Sabit (may Allah have mercy on him) said: The Messenger of Allah (peace and blessings be upon him) said to me: "Perhaps you will remain alive after me until you come upon people who deny the decree of Allah regarding the sins of His servants. They have derived this view of theirs from Christianity. When that happens, declare yourselves free of them before Allah." And Ibn Abbas (may Allah be pleased with them both) used to raise his hands and say: "O Allah, I declare myself free of them before You, just as Your Prophet (peace and blessings be upon him) commanded."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 11133