Be mindful of your hygiene; Return greetings with kindness; Respect others regardless if they are Muslim or non-Muslim

This hadith speaks to the importance of cleanliness in Islam. It was narrated from 'Umair the freed slave of Ibn 'Abbas that he heard him say that when Prophet Muhammad returned from Bi'r Al-jamal, he was met by a man who greeted him with salaam but he did not return it until he turned to the wall and wiped his face and hands. This shows us how important it is to be clean before engaging in any kind of interaction or communication with others. It also teaches us that we should always be mindful of our hygiene and take care to keep ourselves clean before engaging in any kind of social activity or conversation. Furthermore, this hadith also serves as an example for us on how we should respond when someone greets us; we should always return their greeting with kindness and respect regardless if they are Muslim or non-Muslim.