Sayyidina Kab ibn Ujrah narrated that Allahs Messenger (SAW) said to him, ‘I place you, O Kab ibn Ujrah in Allahs protection from the rulers who come after me. So, he who enters their doors shows their lies as true and assists them in their oppression has nothing to do with me and I have nothing to do with him, and he will never come to me at the Pond. And, he who enters their doors, or does not enter, and does not testify to their falsehood (as true) and does not assist them in their tyranny, belongs to me and I belong to him and he will come to me at the Pond. O Ka’b Ujrah, prayer is evidence, and fasting is a strong shield, and sadaqah erases sin as water extinguishes fire. O Ka’b ibn Ujrah, there is no piece of flesh that nurtures on the unlawful but the fire will claim him.”
-------------------------------------------------------------------------------- Bukhari said Numayr reported it to us and he did it on the authority of Ghalib from Ubaydullah ibn Musa.