The Messenger of Allah ﷺ forbade to ride on panther skins and to wear gold except a little. Abu Dawud said: The narrator Abu Qilabah did not meet Mu'awiyah. (Using translation from Abū Dāʾūd 4239)
أَنَّ رَسُولَ اللهِ ﷺ نَهَى عَنْ رُكُوبِ النِّمَارِ وَعَنْ لُبْسِ الذَّهَبِ إِلَّا مُقَطَّعًا