Two judges will be in Hellfire and one in Paradise

Sayyiduna Abdullah bin Buraydah narrates from his father that the Prophet (peace and blessings be upon him) said: "Judges are of three kinds: two will be in the Fire and one in Paradise. The judge who recognised the truth and judged according to it is in Paradise; the judge who recognised the truth but deliberately judged unjustly is in the Fire; and the judge who judged without knowledge (out of ignorance) is also in the Fire."
This hadith is sahih al-isnad (authentic in its chain), but the two Shaykhs (Bukhari and Muslim) did not record it.

Sayyiduna Ibn Buraydah narrates from his father that the Messenger of Allah (peace and blessings be upon him) said: "Two judges will be in the Fire and one judge in Paradise: the judge who judged according to the truth is in Paradise; the judge who judged with injustice is in the Fire; and the judge who judged in his ignorance is in the Fire." The Companions said: What is the sin of this one who is ignorant (since he acted out of ignorance)? He (peace and blessings be upon him) said: "His sin is that he sat in the office of judge before he had attained knowledge."
It has a supporting report (shahid) with an authentic chain on the condition of Imam Muslim.

It is narrated from Sayyiduna Ma'qil bin Sinan al-Ashja'i (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Anyone who is made responsible for anything of the affairs of this Ummah, whether it be little or much, and does not act justly among them, Allah Almighty will throw him face down into the Fire."
This (narrator) is Umm Ma'qil, the daughter of Ma'qil bin Sinan al-Ashja'i, and this hadith is sahih al-isnad (authentic in its chain), but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Yazid bin Sharik that Sayyiduna al-Dahhak bin Qays sent him with clothing to Marwan bin al-Hakam. Marwan asked the doorkeeper: Who is at the door? He said: Abu Hurayrah. So he informed Marwan, and he gave permission. Marwan said: O Abu Hurayrah! Narrate to us some hadith that you heard from the Messenger of Allah (peace and blessings be upon him). He said: I heard the Messenger of Allah (peace and blessings be upon him) say: "Soon a time will come when a man will wish that he had fallen down from the Pleiades (al-Thurayya) rather than having taken responsibility (rule) for any affair of the people."
This hadith is sahih al-isnad (authentic in its chain), but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Woe to the umara' (rulers), the 'urafa' (overseers) and the trustees! On the Day of Resurrection some people will wish that their forelocks had been tied to the Pleiades (al-Thurayya) and that they were dangling between the heaven and the earth, rather than having taken responsibility for any office or task."
This hadith is sahih al-isnad (authentic in its chain), but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Abu Dharr (may Allah be pleased with him) that he said: The Messenger of Allah (peace and blessings be upon him) said: "O Abu Dharr! I see you as weak (with regard to positions of authority), so never become the leader over two men, nor take charge of an orphan's wealth."
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.