Ban on Cursing

As for cursing and insulting, this is not from our manners. And I ask Allah that He bestows upon me and make me among those who forgive the ones who have offended them. And I seek refuge in Allah from being tough and vicious. And I have forbidden the believing brothers and the believing sisters from [having] bad manners which would offend them firstly and would offend the Islam which Muhammad has come with secondly, considering [the fact] that they are affiliated with him (peace be upon him and his Family). And I have asked them to possess the morals/manners of the Qur’an