Abu Hurayra reported that the Prophet, may Allah bless him and
grant him peace, said, "Beware of injustice. Injustice will appear as darkness
on the Day of Rising. Beware of coarseness. Allah does not love those who
are coarse and foul mouthed. Beware of avarice for it destroyed those before
you. They cut off their relatives. Allah summoned them and they made lawful
what was unlawful."