"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].'" (Using translation from Tirmidhī 102)
لَا أَمِسَّ الشَّعْرَ الْمَاءَ