Be fellow brothers and slaves of Allah
Ibu Hurairah [may Allah be pleased with him) narrated that the Messenger of Allah (peace and blessings of Allah be upon him) said:
“Avoid jealousy between yourselves, do not outbid one another (with a view to raising the price), do not harbor hatred against one another, do not bear enmity against one another, one of you should not enter into a commercial transaction when the other has already entered into it; and be fellow brothers and slaves of Allah. A Muslim is a Muslim’s brother.