What did the Prophet Muhammad (saw) do that caused some people to refrain from doing it?
 Narrated `Aisha:                     The Prophet did something and allowed his people to do it, but some people refrained from doing it. When the Prophet learned of that, he delivered a sermon, and after having sent Praises to Allah, he said, "What is wrong with such people as refrain from doing a thing that I do? By Allah, I know Allah better than they, and I am more afraid of Him than they."