It was narrated from Al-Mughirah that the Prophet ﷺ performed Wudu', and he wiped the forehead, the 'Imamah, and over the Khuff. (Another chain)  

أَنَّ رَسُولَ اللَّهِ ﷺ تَوَضَّأَ فَمَسَحَ نَاصِيَتَهُ وَعِمَامَتَهُ وَعَلَى الْخُفَّيْنِ قَالَ بَكْرٌ وَقَدْ سَمِعْتُهُ مِنِ ابْنِ الْمُغِيرَةِ بْنِ شُعْبَةَ عَنْ أَبِيهِ  

"The Messenger of Allah ﷺ stayed behind, and I stayed with him. When he had relieved himself he said: 'Do you have any water with you?' I brought some water to him, and he washed his hands and face, then he started trying to uncover his arms, but the sleeves of his Jubbah were too tight, so he threw it over his shoulders and washed his arms and wiped over his forehead and 'Imamah, and over his Khuff."  

تَخَلَّفَ رَسُولُ اللَّهِ ﷺ فَتَخَلَّفْتُ مَعَهُ فَلَمَّا قَضَى حَاجَتَهُ قَالَ أَمَعَكَ مَاءٌ فَأَتَيْتُهُ بِمِطْهَرَةٍ فَغَسَلَ يَدَيْهِ وَغَسَلَ وَجْهَهُ ثُمَّ ذَهَبَ يَحْسُرُ عَنْ ذِرَاعَيْهِ فَضَاقَ كُمُّ الْجُبَّةِ فَأَلْقَاهُ عَلَى مَنْكِبَيْهِ فَغَسَلَ ذِرَاعَيْهِ وَمَسَحَ بِنَاصِيَتِهِ وَعَلَى الْعِمَامَةِ وَعَلَى خُفَّيْهِ