Quran english Al Hujurat 11

يا أيها الذين آمنوا لا يسخر قوم من قوم عسى أن يكونوا خيرا منهم ولا نساء من نساء عسى أن يكن خيرا منهن ولا تلمزوا أنفسكم ولا تنابزوا بالألقاب بئس الاسم الفسوق بعد الإيمان ومن لم يتب فأولئك هم الظالمون

Ya ayyuha allatheena amanoola yaskhar qawmun min qawmin AAasa an yakoonookhayran minhum wala nisaon min nisa-in AAasaan yakunna khayran minhunna wala talmizoo anfusakum walatanabazoo bil-alqabi bi/sa al-ismualfusooqu baAAda al-eemani waman lam yatub faola-ikahumu aththalimoon

 
Sahih International
O you who have believed, let not a people ridicule [another] people; perhaps they may be better than them; nor let women ridicule [other] women; perhaps they may be better than them. And do not insult one another and do not call each other by [offensive] nicknames. Wretched is the name of disobedience after [one’s] faith. And whoever does not repent - then it is those who are the wrongdoers.
Muhsin Khan
O you who believe! Let not a group scoff at another group, it may be that the latter are better than the former; nor let (some) women scoff at other women, it may be that the latter are better than the former, nor defame one another, nor insult one another by nicknames. How bad is it, to insult one’s brother after having Faith [i.e. to call your Muslim brother (a faithful believer) as: “O sinner”, or “O wicked”, etc.]. And whosoever does not repent, then such are indeed Zalimun (wrong-doers, etc.).
Pickthall
O ye who believe! Let not a folk deride a folk who may be better than they (are), not let women (deride) women who may be better than they are; neither defame one another, nor insult one another by nicknames. Bad is the name of lewdness after faith. And whoso turneth not in repentance, such are evil-doers.
Yusuf Ali
O ye who believe! Let not some men among you laugh at others: It may be that the (latter) are better than the (former): Nor let some women laugh at others: It may be that the (latter are better than the (former): Nor defame nor be sarcastic to each other, nor call each other by (offensive) nicknames: Ill-seeming is a name connoting wickedness, (to be used of one) after he has believed: And those who do not desist are (indeed) doing wrong.
Shakir
O you who believe! let not (one) people laugh at (another) people perchance they may be better than they, nor let women (laugh) at (other) women, perchance they may be better than they; and do not find fault with your own people nor call one another by nicknames; evil is a bad name after faith, and whoever does not turn, these it is that are the unjust.
Dr. Ghali
O you who have believed, let not any people scoff at (another) people who may be more charitable than they; neither let women scoff (other) women who may be more charitable (i.e., better) than they. And do not defame one another, (Literally: do not defame yourselves) nor revile one another by nicknames. Miserable is the name, evident immorality, after belief! And whoever does not repent, then those are they who are the unjust.