The word(s) "harm" appears 78 time(s) in 68 verse(s) in Quran in Mohsin Khan translation.

(61) Verily, those who give Bai'ah (pledge) to you (O Muhammad صلى الله عليه وسلم) they are giving Bai'ah (pledge) to Allah. The Hand of Allah is over their hands. Then whosoever breaks his pledge, breaks it only to his own harm; and whosoever fulfils what he has covenanted with Allah, He will bestow on him a great reward.

(62) O you who believe! If a Fasiq (liar - evil person) comes to you with any news, verify it, lest you should harm people in ignorance, and afterwards you become regretful for what you have done.

(63) Secret counsels (conspiracies) are only from Shaitan (Satan), in order that he may cause grief to the believers. But he cannot harm them in the least, except as Allah permits. And in Allah let the believers put their trust .

(64) Lodge them (the divorced women) where you dwell, according to your means, and do not harm them so as to straiten them (that they be obliged to leave your house). And if they are pregnant, then spend on them till they lay down their burden. Then if they give suck to the children for you, give them their due payment, and let each of you accept the advice of the other in a just way. But if you make difficulties for one another, then some other woman may give suck for him (the father of the child).

(65) Say: "It is not in my power to cause you harm, or to bring you to the Right Path."

(66) Where they shall neither hear harmful speech nor falsehood.

(67) But the Messenger of Allah [Salih عليه السلام] said to them: "Be cautious! (Fear the evil end). That is the she-camel of Allah! (Do not harm it) and bar it not from having its drink!"

(68) Except those who believe (in Islamic Monotheism) and do righteous good deeds, and recommend one another to the truth [i.e. order one another to perform all kinds of good deeds (Al-Ma'ruf) which Allah has ordained, and abstain from all kinds of sins and evil deeds (Al-Munkar which Allah has forbidden], and recommend one another to patience (for the sufferings, harms, and injuries which one may encounter in Allah's Cause during preaching His religion of Islamic Monotheism or Jihad).