Sahih Bukhari Volume 9, Book 92, Hadith 7055

حَدَّثَنَا مُسَدَّدٌ، عَنْ عَبْدِ الْوَارِثِ، عَنِ الْجَعْدِ، عَنْ أَبِي رَجَاءٍ، عَنِ ابْنِ عَبَّاسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏"‏ مَنْ كَرِهَ مِنْ أَمِيرِهِ شَيْئًا فَلْيَصْبِرْ، فَإِنَّهُ مَنْ خَرَجَ مِنَ السُّلْطَانِ شِبْرًا مَاتَ مِيتَةً جَاهِلِيَّةً

Narrated By Ibn Abbas : The Prophet said, "Whoever disapproves of something done by his ruler then he should be patient, for whoever disobeys the ruler even a little (little = a span) will die as those who died in the Pre-Islamic Period of Ignorance. (i.e. as rebellious Sinners).