It was narrated that Kab bin Ujrah said: "The Messenger of Allah (ﷺ) came out to us, and there were nine of us. He said; 'After me there will be rulers, whoever believes in their lies and helps them in their wrongdoing is not of me, and I am not of him, and he will not come to me at the Cistern. Whoever does not believe their lies and does not help them in their wrongdoing, he is of me, and I am of hi, and he will come to me at the Cistern."'
Source: sunnah.com
Other translations
Arabic
أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا يَحْيَى، عَنْ سُفْيَانَ، عَنْ أَبِي حَصِينٍ، عَنِ الشَّعْبِيِّ، عَنْ عَاصِمٍ الْعَدَوِيِّ، عَنْ كَعْبِ بْنِ عُجْرَةَ، قَالَ خَرَجَ عَلَيْنَا رَسُولُ اللَّهِ صلى الله عليه وسلم وَنَحْنُ تِسْعَةٌ فَقَالَ " إِنَّهُ سَتَكُونُ بَعْدِي أُمَرَاءُ مَنْ صَدَّقَهُمْ بِكَذِبِهِمْ وَأَعَانَهُمْ عَلَى ظُلْمِهِمْ فَلَيْسَ مِنِّي وَلَسْتُ مِنْهُ وَلَيْسَ بِوَارِدٍ عَلَىَّ الْحَوْضَ وَمَنْ لَمْ يُصَدِّقْهُمْ بِكَذِبِهِمْ وَلَمْ يُعِنْهُمْ عَلَى ظُلْمِهِمْ فَهُوَ مِنِّي وَأَنَا مِنْهُ وَهُوَ وَارِدٌ عَلَىَّ الْحَوْضَ " .
sunnah.com