Respect & revere Prophet Muhammad PBUH , Preserve his relics & memories .

This hadith is about Umm Sulaim who was a companion of Prophet Muhammad (PBUH). She spread out a piece of cloth for him to rest on and he sweated profusely. She collected his sweat and put it in bottles as perfume. When Allah's Apostle asked her what she was doing with his sweat, she replied that she was preserving it as perfume. This shows us how much respect and reverence Muslims have for their beloved prophet. His sweat was so precious to them that they wanted to preserve it like an expensive fragrance or cologne. It also shows us how much love they had for him even after he passed away from this world. Furthermore, this hadith also tells us that revelation descended upon the prophet when he sweated in cold weather which further emphasizes the importance of his sweat and its preservation by Muslims throughout history.