The word(s) "harms" appears 5 time(s) in 5 verse(s) in Quran in Saheeh International translation.

(1) And they followed [instead] what the devils had recited during the reign of Solomon. It was not Solomon who disbelieved, but the devils disbelieved, teaching people magic and that which was revealed to the two angels at Babylon, Harut and Marut. But the two angels do not teach anyone unless they say, "We are a trial, so do not disbelieve [by practicing magic]." And [yet] they learn from them that by which they cause separation between a man and his wife. But they do not harm anyone through it except by permission of Allah. And the people learn what harms them and does not benefit them. But the Children of Israel certainly knew that whoever purchased the magic would not have in the Hereafter any share. And wretched is that for which they sold themselves, if they only knew.

(2) Say, "Shall we invoke instead of Allah that which neither benefits us nor harms us and be turned back on our heels after Allah has guided us? [We would then be] like one whom the devils enticed [to wander] upon the earth confused, [while] he has companions inviting him to guidance, [calling], 'Come to us.' " Say, "Indeed, the guidance of Allah is the [only] guidance; and we have been commanded to submit to the Lord of the worlds.

(3) And they worship other than Allah that which neither harms them nor benefits them, and they say, "These are our intercessors with Allah " Say, "Do you inform Allah of something He does not know in the heavens or on the earth?" Exalted is He and high above what they associate with Him

(4) And do not invoke besides Allah that which neither benefits you nor harms you, for if you did, then indeed you would be of the wrongdoers.'"

(5) He invokes instead of Allah that which neither harms him nor benefits him. That is what is the extreme error.