hadeeth

On the authority of Abu Hurayrah (may Allah be pleased with him) who said:

The Messenger of Allah (peace and blessings of Allah be upon him) said, “Do not envy

one another, and do not inflate prices for one another, and do not hate one another,

and do not turn away from one another, and do not undercut one another in trade, but

[rather] be slaves of Allah and brothers [amongst yourselves]. A Muslim is the brother

of a Muslim: he does not oppress him, nor does he fail him, nor does he lie to him, nor

three times]. It is evil enough for a man to hold his brother Muslim in contempt. The

whole of a Muslim is inviolable for another Muslim: his blood, his property, and his

honour.”

It was related by Muslim.