There is no obedience to one who disobeys Allah

Sayyiduna Jabir (may Allah be pleased with him) narrates from Ubadah bin al-Samit (may Allah be pleased with him) that he went to Sayyiduna Uthman bin Affan (may Allah be pleased with him) and said: I heard the Messenger of Allah (peace and blessings be upon him) say: "After me, rulers will be in authority over you who will tell you things that you consider wrong, and will condemn the things that you know (to be right). So whoever of you reaches that time (should remember that) there is no obedience to one who disobeys Allah."
This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it. It has also been narrated by Zuhayr bin Mu'awiyah and Muslim bin Khalid al-Zanji from Abdullah bin Uthman bin Khuthaym, from Isma'il bin Ubayd bin Rifa'ah, with some additions:

Abdullah bin Uthman bin Khuthaym narrates from Isma'il bin Ubayd (in line with the previous hadith). And the hadith of Muslim bin Khalid is as follows:

Isma'il bin Ubayd bin Rifa'ah narrates from his father that Sayyiduna Ubadah bin al-Samit (may Allah be pleased with him) stood up in the middle of the house of the Commander of the Believers, Uthman bin Affan (may Allah be pleased with him), and said: "I heard the Messenger of Allah (peace and blessings be upon him), Muhammad Abu al-Qasim, say: 'After me, men will be in authority over your affairs who will tell you things that you consider wrong, and will condemn the things that you know (to be right). So there is no obedience to one who disobeys Allah.' So do not bring loss upon yourselves. By the One in whose Hand is my soul! Mu'awiyah (may Allah be pleased with him) is certainly one of them." At this, Uthman (may Allah be pleased with him) did not answer him with a single word.
This hadith has also been narrated through another sahih (authentic) chain on the condition of the two Shaykhs (Bukhari and Muslim), containing a shortened text about Sayyiduna Ubadah bin al-Samit (may Allah be pleased with him) coming to Sayyiduna Uthman (may Allah be pleased with him) with a complaint:

It is narrated from Azhar bin Abdullah that he said: Sayyiduna Ubadah bin al-Samit (may Allah be pleased with him) came from al-Sham intending Hajj and performed Hajj, then he came to Madinah and went to Sayyiduna Uthman bin Affan (may Allah be pleased with him) with a complaint; and then the narrator mentioned the full hadith.
Chapter on the virtues of Sayyiduna Amir bin Rabi'ah (may Allah be pleased with him).