What advice did the Prophet Muhammad (saw) give concerning suspicious talk, spying, listening to evil talk about others, and enmity between Muslims?
 Narrated Abu Huraira:                     The Prophet said, "Beware of suspicion (about others), as suspicion is the falsest talk, and do not spy upon each other, and do not listen to the evil talk of the people about others' affairs, and do not have enmity with one another, but be brothers. And none should ask for the hand of a girl who is already engaged to his (Muslim) brother, but one should wait till the first suitor marries her or leaves her."