Abu Qilabah al-Jarmi (may Allah have mercy on him) narrates from Sayyiduna Mu'awiyah bin Abi Sufyan (may Allah be pleased with him): "That the Messenger of Allah (peace and blessings be upon him) forbade riding on leopards, and forbade wearing gold except a small amount."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 16887