Kaab bin Ujra reported,

The Messenger of Allah ﷺ came out to us, or came in to us, while we were nine in number, with a leather cushion among us, and said, "After me there will be rulers who lie and oppress. Whoever enters upon them and confirms their lies and supports them in their oppression is not of me, nor am I of him, and he will not come to me at the Pool. But whoever does not confirm their lies and does not support them in their oppression is of me, and I am of him, and he will come to me at the Pool."

Ahmad 18126

Sahih

حدثنا يحيى بن سعيد عن سفيان حدثني أبو حصين عن الشعبي عن عاصم العدوى

عن كعب بن عجرة قال

خرج علينا رسول الله ﷺ أو دخل ونحن تسعة وبيننا وسادة من أدم فقال إنها ستكون بعدي أمراء يكذبون ويظلمون فمن دخل عليهم فصدقهم بكذبهم وأعانهم على ظلمهم فليس مني ولست منه وليس بوارد علي الحوض ومن لم يصدقهم بكذبهم ويعنهم على ظلمهم فهو مني وأنا منه وهو وارد علي الحوض

أحمد 18126صحيح
Contents
Reference
Commentary
Ayat
Collection
Musnad Ahmad
Book
Kaab bin Ujra
Numbering
Darussalam 18126
Ahmad 18126