It was narrated from Zainab bint Jahsh that : She had a tub of brass. She said: "I used to comb the hair of the Messenger of Allah in it".
This hadith also teaches us about respect for others regardless of their social standing or position in life; even though Zainab was just a servant she was still given permission by the prophet ﷺ to do something as intimate as combing his hair which shows us that everyone deserves respect no matter who they are or what they do for a living. Lastly, this hadith reminds us that we should take care of ourselves and make sure we look presentable at all times; even though it may seem trivial, taking care of our appearance can have an effect on how people perceive us and can make them more likely to listen to what we have to say if we look put together and well groomed.