It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "O Ka'b bin Ujrah! May Allah keep you under His protection from the rule of fools." He said: What is meant by the rule of fools? He (peace and blessings be upon him) said: "There will be rulers after me who will neither follow my guidance nor act upon my Sunnah. So whoever affirms them in their lies and helps them in their oppression, such people are not of me and I am not of them, and they will not come to me at my Pond. And whoever does not affirm them in their lies and does not help them in their oppression, such people are of me and I am of them, and they will come to me at my Pond. O Ka'b bin Ujrah! Flesh that has grown from unlawful wealth (suht) will not enter Paradise; the Fire is more deserving of it. O Ka'b bin Ujrah! Fasting is a shield, charity extinguishes sin, and prayer is a means of nearness to Allah - or he (peace and blessings be upon him) said: (prayer) is a proof." Moreover, this saying of the Prophet (peace and blessings be upon him), "flesh that has grown from unlawful wealth (is deserving of the Fire)," has also been narrated from Sayyiduna Abu Bakr and Sayyiduna Umar (may Allah be pleased with them both).