35. Combing the Hair (Kitab Al-Tarajjul) - كتاب الترجل
18) Chapter: Dyeing Hair
This version adds (to the previous hadith No 4194):
My father said to him (the Prophet): Show me what is on your back, for I am a physician. He (the Prophet) said: You are only a soother. Its physician is He Who has credit it.