'Abdullah said, "Peace is one of the Names of Allah which Allah
has placed on the earth. Extend it among you. When a man greets people
and they answer him, then he has a higher degree than them because he reminds
them of peace. If no one answers him, he will be answered by one who is
better and more excellent.'"
'Abdullah ibn 'Amr ibn al-'As said, "A liar is someone who lies
in his oath. A miser is someone who is miserly with the greeting. A thief
is someone who steals the prayer."
'Abdullah ibn as-Samit said, "I said to Abu Dharr, 'I passed by
'Abdu'r-Rahman ibn Umm al-Hakam and I greeted him and he did not answer
me at all. He said, 'Nephew, what harm have suffered from that? Someone
better than him answered you ? the angel on his right."