Musnad Ahmad Hadith 5373

Umar bin Abdullah says that once some people were coming from Marwan, and they met Ibn Umar (may Allah be pleased with them). He asked, "Where are these people coming from?" They replied, "We are coming from the Amir of Madinah, Marwan." Ibn Umar (may Allah be pleased with them) said, "Did you speak about the truth you saw there and support it, and did you denounce and object to the evil you saw there?" They said, "By Allah! That did not happen. Rather, he would say something wrong and we would support him, and we would say to him, 'May Allah deal with you in goodness.' And when we left from there, we would say, 'May Allah kill him, how oppressive and wicked he is!'" Ibn Umar (may Allah be pleased with them) said, "In the blessed era of the Prophet (ﷺ), we used to consider this as hypocrisy."