The Prophet (peace and blessings be upon him) said, "Allah said, 'I will be an opponent to three types of people on the Day of Resurrection:
One who makes a covenant in My Name, but proves treacherous; One who sells a free person and eats his price; and One who employs a laborer and takes full work from him but does not pay him for his labour.' "
Hadith quoted from Sahih Al-Bukhari Hadith 3.470 Narrated by Abu Huraira
