What did the Prophet Muhammad (saw) say about those who break covenants in the name of Allah?
 Narrated Abu Huraira:                     The Prophet said, "Allah says, 'I will be against three persons on the Day of Resurrection: -1. One who makes a covenant in My Name, but he proves treacherous. -2. One who sells a free person (as a slave) and eats the price, -3. And one who employs a laborer and gets the full work done by him but does not pay him his wages.' "