Show respect when looking at someone by only looking once.

This hadith teaches us that it is important to show respect and etiquette when looking at someone. We should not look at someone more than once, as this can be seen as disrespectful or inappropriate. The Prophet ? was teaching 'Ali about how to behave in a respectful manner, and this advice applies to all of us today. We should always be mindful of our behaviour when interacting with others, and remember that we should never stare or look too long at anyone else. This hadith also reminds us that we should always treat others with kindness and respect, no matter who they are or what their background may be.