“Allah said, ‘I will be an opponent to three types of people on the Day of Resurrection:
1) One who makes a covenant in My Name, but proves treacherous;
2) One who sells a free person and eats his price;
3) One who employs a labourer and takes full work from him but does not pay him for his labour.
[Reported by Al-Bukhari, ibn Majah and others]
