Wash your utensils thoroughly after a dog drinks from them.

This hadith, narrated by Abu Huraira, teaches us the importance of cleanliness and purification. According to this hadith, if a dog drinks from any utensil or vessel belonging to someone, it is essential for that person to wash the utensil seven times in order for it to be purified and considered clean again. This hadith emphasizes the importance of cleanliness and purity in Islam as well as how important it is for us to take care of our belongings and keep them clean at all times. The number seven has special significance in Islam; washing something seven times ensures that all impurities are removed from an object or surface. Therefore, this hadith serves as an important reminder for us about the importance of keeping ourselves and our belongings pure and free from impurities.