What Has Been Related About Wiping Over The Imamah Jami` at-Tirmidhi 102

Arabic hadith text
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا بِشْرُ بْنُ الْمُفَضَّلِ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ إِسْحَاقَ، هُوَ الْقُرَشِيُّ عَنْ أَبِي عُبَيْدَةَ بْنِ مُحَمَّدِ بْنِ عَمَّارِ بْنِ يَاسِرٍ، قَالَ سَأَلْتُ جَابِرَ بْنَ عَبْدِ اللَّهِ عَنِ الْمَسْحِ، عَلَى الْخُفَّيْنِ فَقَالَالسُّنَّةُ يَا ابْنَ أَخِي ‏.‏ قَالَ وَسَأَلْتُهُ عَنِ الْمَسْحِ، عَلَى الْعِمَامَةِ فَقَالَ أَمِسَّ الشَّعَرَ الْمَاءَ ‏.‏
Translation
Abu Ubaidah bin Muttammad bin Ammar bin Yasir said

"I asked Jabir bin Abdullah about wiping over the Khuff. He said, 'O my nephew! It is the Sunnah.'" [He said:] "And I asked him about wiping over the lmamah. He said, '[Wipe1 the hair [with water].'"