Abu Ishaq (may Allah have mercy on him) narrated: I saw Sayyiduna Hujr bin Adi (may Allah be pleased with him) when Sayyiduna Mu'awiyah (may Allah be pleased with him) seized him, and he was saying: "This is my pledge of allegiance; I will neither revoke it nor seek to be released from it, with Allah and the people hearing."
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3556