Wash your vessels seven times if a dog drinks from them.

This hadith emphasizes the importance of cleanliness and hygiene. The Prophet Muhammad (peace be upon him) taught us that if a dog drinks from our vessel we should wash it seven times. This is because dogs are considered unclean animals in Islam and their saliva can contain germs that can cause illness. Therefore, it is important to ensure that any vessels they come into contact with are thoroughly washed so as not to spread any germs or bacteria. Furthermore, this hadith teaches us the importance of maintaining good hygiene practices in general and taking care to keep ourselves and our environment clean at all times.