Sa'id bin al-Musayyab (may Allah have mercy on him) said: Sayyiduna Mu'awiyah (may Allah be pleased with him) came to Madinah and stood on the pulpit, holding a braid of hair in his hand, and he said: "I did not think that anyone would do this, for the Messenger of Allah (peace and blessings be upon him) called it zur."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 16777