عن ابن عمر رضي الله عنهما مرفوعاً: «على المرء المسلم السمع والطاعة فيما أحب وكَرِهَ، إلا أن يُؤمر بمعصية، فإذا أُمِرَ بمعصية فلا سمع ولا طاعة».
[صحيح] - [متفق عليه]
Ibn ‘Umar (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: “A Muslim person must listen and obey concerning what he likes and hates, unless he is ordered to commit a sin. If he is ordered to commit a sin, then he should neither listen nor obey.”
Sahih/Authentic. - [Al-Bukhari and Muslim]
According to this Hadīth, it is mandatory to listen to and obey the ruler, whether or not one likes his commands. Only if one is ordered to commit a sin, he is not under obligation to listen and obey concerning this specific order.