Greet others with respect and kindness by saying "As-salamu 'alaikum wa rahmatullah".

This hadith tells us about the importance of greeting people with peace and mercy. It was narrated from Abdullah that the Messenger of Allah used to say salam to his right and left until the whiteness of his cheek could be seen while saying “As-salamu 'alaikum wa rahmatullah” which means “Peace be upon you and the mercy of Allah”. This hadith teaches us that we should always greet people in a peaceful manner, wishing them peace as well as God's mercy. We should also make sure that our greeting is sincere so that it can bring joy to those around us. By doing this, we can create a positive atmosphere in our community or workplace which will benefit everyone involved.